Home / 10,264.38-15,385.92-4,991.58

Finding the Fourth Proportional to 10,264.38, 15,385.92 and 4,991.58

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Solution

The fourth proportional to 10,264.38, 15,385.92 and 4,991.58 is: 7,482.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,264.38 : 15,385.92 = 4,991.58 : x
  2. Step 2: Convert to fraction form
    10,264.38/15,385.92 = 4,991.58/x
  3. Step 3: Cross multiply
    10,264.38x = 15,385.92 × 4,991.58
  4. Step 4: Simplify right side
    10,264.38x = 76,800,050.55
  5. Step 5: Solve for x
    x = 76,800,050.55/10,264.38
  6. Step 6: Final answer
    x = 7,482.19

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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.