Home / 10,305.60-14,221.56-5,589.96

Finding the Fourth Proportional to 10,305.60, 14,221.56 and 5,589.96

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Solution

The fourth proportional to 10,305.60, 14,221.56 and 5,589.96 is: 7,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.60 : 14,221.56 = 5,589.96 : x
  2. Step 2: Convert to fraction form
    10,305.60/14,221.56 = 5,589.96/x
  3. Step 3: Cross multiply
    10,305.60x = 14,221.56 × 5,589.96
  4. Step 4: Simplify right side
    10,305.60x = 79,497,951.54
  5. Step 5: Solve for x
    x = 79,497,951.54/10,305.60
  6. Step 6: Final answer
    x = 7,714.05

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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.