Home / 10,487.31-14,473.20-5,771.90

Finding the Fourth Proportional to 10,487.31, 14,473.20 and 5,771.90

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Solution

The fourth proportional to 10,487.31, 14,473.20 and 5,771.90 is: 7,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.31 : 14,473.20 = 5,771.90 : x
  2. Step 2: Convert to fraction form
    10,487.31/14,473.20 = 5,771.90/x
  3. Step 3: Cross multiply
    10,487.31x = 14,473.20 × 5,771.90
  4. Step 4: Simplify right side
    10,487.31x = 83,537,863.08
  5. Step 5: Solve for x
    x = 83,537,863.08/10,487.31
  6. Step 6: Final answer
    x = 7,965.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.