Home / 9,144.75-12,618.74-5,165.02

Finding the Fourth Proportional to 9,144.75, 12,618.74 and 5,165.02

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Solution

The fourth proportional to 9,144.75, 12,618.74 and 5,165.02 is: 7,127.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,144.75 : 12,618.74 = 5,165.02 : x
  2. Step 2: Convert to fraction form
    9,144.75/12,618.74 = 5,165.02/x
  3. Step 3: Cross multiply
    9,144.75x = 12,618.74 × 5,165.02
  4. Step 4: Simplify right side
    9,144.75x = 65,176,025.84
  5. Step 5: Solve for x
    x = 65,176,025.84/9,144.75
  6. Step 6: Final answer
    x = 7,127.15

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Half scale
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Double scale
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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.