Home / 10,487.64-15,734.19-3,913.88

Finding the Fourth Proportional to 10,487.64, 15,734.19 and 3,913.88

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Solution

The fourth proportional to 10,487.64, 15,734.19 and 3,913.88 is: 5,871.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.64 : 15,734.19 = 3,913.88 : x
  2. Step 2: Convert to fraction form
    10,487.64/15,734.19 = 3,913.88/x
  3. Step 3: Cross multiply
    10,487.64x = 15,734.19 × 3,913.88
  4. Step 4: Simplify right side
    10,487.64x = 61,581,633.32
  5. Step 5: Solve for x
    x = 61,581,633.32/10,487.64
  6. Step 6: Final answer
    x = 5,871.83

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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.