Home / 13,562.62-20,347.02-5,242.72

Finding the Fourth Proportional to 13,562.62, 20,347.02 and 5,242.72

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Solution

The fourth proportional to 13,562.62, 20,347.02 and 5,242.72 is: 7,865.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.62 : 20,347.02 = 5,242.72 : x
  2. Step 2: Convert to fraction form
    13,562.62/20,347.02 = 5,242.72/x
  3. Step 3: Cross multiply
    13,562.62x = 20,347.02 × 5,242.72
  4. Step 4: Simplify right side
    13,562.62x = 106,673,728.69
  5. Step 5: Solve for x
    x = 106,673,728.69/13,562.62
  6. Step 6: Final answer
    x = 7,865.27

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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.