Home / 12,547.43-18,821.14-5,617.07

Finding the Fourth Proportional to 12,547.43, 18,821.14 and 5,617.07

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Solution

The fourth proportional to 12,547.43, 18,821.14 and 5,617.07 is: 8,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.43 : 18,821.14 = 5,617.07 : x
  2. Step 2: Convert to fraction form
    12,547.43/18,821.14 = 5,617.07/x
  3. Step 3: Cross multiply
    12,547.43x = 18,821.14 × 5,617.07
  4. Step 4: Simplify right side
    12,547.43x = 105,719,552.71
  5. Step 5: Solve for x
    x = 105,719,552.71/12,547.43
  6. Step 6: Final answer
    x = 8,425.60

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.