Home / 13,591.34-20,387-8,973.26

Finding the Fourth Proportional to 13,591.34, 20,387 and 8,973.26

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Solution

The fourth proportional to 13,591.34, 20,387 and 8,973.26 is: 13,459.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,591.34 : 20,387 = 8,973.26 : x
  2. Step 2: Convert to fraction form
    13,591.34/20,387 = 8,973.26/x
  3. Step 3: Cross multiply
    13,591.34x = 20,387 × 8,973.26
  4. Step 4: Simplify right side
    13,591.34x = 182,937,851.62
  5. Step 5: Solve for x
    x = 182,937,851.62/13,591.34
  6. Step 6: Final answer
    x = 13,459.88

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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.