Home / 15,943.38-23,913.45-4,257.78

Finding the Fourth Proportional to 15,943.38, 23,913.45 and 4,257.78

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Solution

The fourth proportional to 15,943.38, 23,913.45 and 4,257.78 is: 6,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.38 : 23,913.45 = 4,257.78 : x
  2. Step 2: Convert to fraction form
    15,943.38/23,913.45 = 4,257.78/x
  3. Step 3: Cross multiply
    15,943.38x = 23,913.45 × 4,257.78
  4. Step 4: Simplify right side
    15,943.38x = 101,818,209.14
  5. Step 5: Solve for x
    x = 101,818,209.14/15,943.38
  6. Step 6: Final answer
    x = 6,386.24

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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.