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Finding the Fourth Proportional to 9,154.44, 12,615.18 and 7,480.20

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Solution

The fourth proportional to 9,154.44, 12,615.18 and 7,480.20 is: 10,308.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,154.44 : 12,615.18 = 7,480.20 : x
  2. Step 2: Convert to fraction form
    9,154.44/12,615.18 = 7,480.20/x
  3. Step 3: Cross multiply
    9,154.44x = 12,615.18 × 7,480.20
  4. Step 4: Simplify right side
    9,154.44x = 94,364,069.44
  5. Step 5: Solve for x
    x = 94,364,069.44/9,154.44
  6. Step 6: Final answer
    x = 10,308.01

Related Problems

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Half scale
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Double scale
Find fourth proportional to 9,155.44, 12,616.56 and 7,481.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.