Home / 13,564.90-20,342.30-4,677.76

Finding the Fourth Proportional to 13,564.90, 20,342.30 and 4,677.76

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Solution

The fourth proportional to 13,564.90, 20,342.30 and 4,677.76 is: 7,014.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.90 : 20,342.30 = 4,677.76 : x
  2. Step 2: Convert to fraction form
    13,564.90/20,342.30 = 4,677.76/x
  3. Step 3: Cross multiply
    13,564.90x = 20,342.30 × 4,677.76
  4. Step 4: Simplify right side
    13,564.90x = 95,156,397.25
  5. Step 5: Solve for x
    x = 95,156,397.25/13,564.90
  6. Step 6: Final answer
    x = 7,014.90

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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.