Home / 13,587.71-20,385.12-4,704.89

Finding the Fourth Proportional to 13,587.71, 20,385.12 and 4,704.89

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Solution

The fourth proportional to 13,587.71, 20,385.12 and 4,704.89 is: 7,058.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.71 : 20,385.12 = 4,704.89 : x
  2. Step 2: Convert to fraction form
    13,587.71/20,385.12 = 4,704.89/x
  3. Step 3: Cross multiply
    13,587.71x = 20,385.12 × 4,704.89
  4. Step 4: Simplify right side
    13,587.71x = 95,909,747.24
  5. Step 5: Solve for x
    x = 95,909,747.24/13,587.71
  6. Step 6: Final answer
    x = 7,058.57

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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.