Home / 13,562.74-20,347.21-5,242.82

Finding the Fourth Proportional to 13,562.74, 20,347.21 and 5,242.82

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Solution

The fourth proportional to 13,562.74, 20,347.21 and 5,242.82 is: 7,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.74 : 20,347.21 = 5,242.82 : x
  2. Step 2: Convert to fraction form
    13,562.74/20,347.21 = 5,242.82/x
  3. Step 3: Cross multiply
    13,562.74x = 20,347.21 × 5,242.82
  4. Step 4: Simplify right side
    13,562.74x = 106,676,759.53
  5. Step 5: Solve for x
    x = 106,676,759.53/13,562.74
  6. Step 6: Final answer
    x = 7,865.43

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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.