Home / 13,567.61-20,354.52-5,247.70

Finding the Fourth Proportional to 13,567.61, 20,354.52 and 5,247.70

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Solution

The fourth proportional to 13,567.61, 20,354.52 and 5,247.70 is: 7,872.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.61 : 20,354.52 = 5,247.70 : x
  2. Step 2: Convert to fraction form
    13,567.61/20,354.52 = 5,247.70/x
  3. Step 3: Cross multiply
    13,567.61x = 20,354.52 × 5,247.70
  4. Step 4: Simplify right side
    13,567.61x = 106,814,414.60
  5. Step 5: Solve for x
    x = 106,814,414.60/13,567.61
  6. Step 6: Final answer
    x = 7,872.75

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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.