Home / 14,269.20-19,691.96-7,981.52

Finding the Fourth Proportional to 14,269.20, 19,691.96 and 7,981.52

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Solution

The fourth proportional to 14,269.20, 19,691.96 and 7,981.52 is: 11,014.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,269.20 : 19,691.96 = 7,981.52 : x
  2. Step 2: Convert to fraction form
    14,269.20/19,691.96 = 7,981.52/x
  3. Step 3: Cross multiply
    14,269.20x = 19,691.96 × 7,981.52
  4. Step 4: Simplify right side
    14,269.20x = 157,171,772.58
  5. Step 5: Solve for x
    x = 157,171,772.58/14,269.20
  6. Step 6: Final answer
    x = 11,014.76

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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.