Home / 10,359.30-15,538.95-3,432.90

Finding the Fourth Proportional to 10,359.30, 15,538.95 and 3,432.90

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Solution

The fourth proportional to 10,359.30, 15,538.95 and 3,432.90 is: 5,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,359.30 : 15,538.95 = 3,432.90 : x
  2. Step 2: Convert to fraction form
    10,359.30/15,538.95 = 3,432.90/x
  3. Step 3: Cross multiply
    10,359.30x = 15,538.95 × 3,432.90
  4. Step 4: Simplify right side
    10,359.30x = 53,343,661.46
  5. Step 5: Solve for x
    x = 53,343,661.46/10,359.30
  6. Step 6: Final answer
    x = 5,149.35

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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.