Home / 13,472.60-18,589.02-8,166.20

Finding the Fourth Proportional to 13,472.60, 18,589.02 and 8,166.20

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Solution

The fourth proportional to 13,472.60, 18,589.02 and 8,166.20 is: 11,267.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.60 : 18,589.02 = 8,166.20 : x
  2. Step 2: Convert to fraction form
    13,472.60/18,589.02 = 8,166.20/x
  3. Step 3: Cross multiply
    13,472.60x = 18,589.02 × 8,166.20
  4. Step 4: Simplify right side
    13,472.60x = 151,801,655.12
  5. Step 5: Solve for x
    x = 151,801,655.12/13,472.60
  6. Step 6: Final answer
    x = 11,267.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.