Home / 10,517.91-15,772.26-3,939.48

Finding the Fourth Proportional to 10,517.91, 15,772.26 and 3,939.48

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Solution

The fourth proportional to 10,517.91, 15,772.26 and 3,939.48 is: 5,907.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.91 : 15,772.26 = 3,939.48 : x
  2. Step 2: Convert to fraction form
    10,517.91/15,772.26 = 3,939.48/x
  3. Step 3: Cross multiply
    10,517.91x = 15,772.26 × 3,939.48
  4. Step 4: Simplify right side
    10,517.91x = 62,134,483.13
  5. Step 5: Solve for x
    x = 62,134,483.13/10,517.91
  6. Step 6: Final answer
    x = 5,907.50

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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.