Home / 9,155.48-12,635.21-5,176.63

Finding the Fourth Proportional to 9,155.48, 12,635.21 and 5,176.63

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Solution

The fourth proportional to 9,155.48, 12,635.21 and 5,176.63 is: 7,144.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,155.48 : 12,635.21 = 5,176.63 : x
  2. Step 2: Convert to fraction form
    9,155.48/12,635.21 = 5,176.63/x
  3. Step 3: Cross multiply
    9,155.48x = 12,635.21 × 5,176.63
  4. Step 4: Simplify right side
    9,155.48x = 65,407,807.14
  5. Step 5: Solve for x
    x = 65,407,807.14/9,155.48
  6. Step 6: Final answer
    x = 7,144.12

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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.