Home / 13,248.20-18,282.63-7,279.72

Finding the Fourth Proportional to 13,248.20, 18,282.63 and 7,279.72

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Solution

The fourth proportional to 13,248.20, 18,282.63 and 7,279.72 is: 10,046.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.20 : 18,282.63 = 7,279.72 : x
  2. Step 2: Convert to fraction form
    13,248.20/18,282.63 = 7,279.72/x
  3. Step 3: Cross multiply
    13,248.20x = 18,282.63 × 7,279.72
  4. Step 4: Simplify right side
    13,248.20x = 133,092,335.85
  5. Step 5: Solve for x
    x = 133,092,335.85/13,248.20
  6. Step 6: Final answer
    x = 10,046.07

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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.