Home / 15,547.78-23,321.79-5,687.38

Finding the Fourth Proportional to 15,547.78, 23,321.79 and 5,687.38

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Solution

The fourth proportional to 15,547.78, 23,321.79 and 5,687.38 is: 8,531.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.78 : 23,321.79 = 5,687.38 : x
  2. Step 2: Convert to fraction form
    15,547.78/23,321.79 = 5,687.38/x
  3. Step 3: Cross multiply
    15,547.78x = 23,321.79 × 5,687.38
  4. Step 4: Simplify right side
    15,547.78x = 132,639,882.01
  5. Step 5: Solve for x
    x = 132,639,882.01/15,547.78
  6. Step 6: Final answer
    x = 8,531.11

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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.