Home / 11,073.20-15,279.52-6,357.72

Finding the Fourth Proportional to 11,073.20, 15,279.52 and 6,357.72

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Solution

The fourth proportional to 11,073.20, 15,279.52 and 6,357.72 is: 8,772.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,073.20 : 15,279.52 = 6,357.72 : x
  2. Step 2: Convert to fraction form
    11,073.20/15,279.52 = 6,357.72/x
  3. Step 3: Cross multiply
    11,073.20x = 15,279.52 × 6,357.72
  4. Step 4: Simplify right side
    11,073.20x = 97,142,909.89
  5. Step 5: Solve for x
    x = 97,142,909.89/11,073.20
  6. Step 6: Final answer
    x = 8,772.79

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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.