Home / 15,750.47-23,631.17-6,991.53

Finding the Fourth Proportional to 15,750.47, 23,631.17 and 6,991.53

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Solution

The fourth proportional to 15,750.47, 23,631.17 and 6,991.53 is: 10,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.47 : 23,631.17 = 6,991.53 : x
  2. Step 2: Convert to fraction form
    15,750.47/23,631.17 = 6,991.53/x
  3. Step 3: Cross multiply
    15,750.47x = 23,631.17 × 6,991.53
  4. Step 4: Simplify right side
    15,750.47x = 165,217,999.03
  5. Step 5: Solve for x
    x = 165,217,999.03/15,750.47
  6. Step 6: Final answer
    x = 10,489.72

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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.