Home / 14,663.53-20,226.71-8,691.20

Finding the Fourth Proportional to 14,663.53, 20,226.71 and 8,691.20

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Solution

The fourth proportional to 14,663.53, 20,226.71 and 8,691.20 is: 11,988.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,663.53 : 20,226.71 = 8,691.20 : x
  2. Step 2: Convert to fraction form
    14,663.53/20,226.71 = 8,691.20/x
  3. Step 3: Cross multiply
    14,663.53x = 20,226.71 × 8,691.20
  4. Step 4: Simplify right side
    14,663.53x = 175,794,378.40
  5. Step 5: Solve for x
    x = 175,794,378.40/14,663.53
  6. Step 6: Final answer
    x = 11,988.54

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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.