Home / 10,347.72-14,279.49-5,631.90

Finding the Fourth Proportional to 10,347.72, 14,279.49 and 5,631.90

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Solution

The fourth proportional to 10,347.72, 14,279.49 and 5,631.90 is: 7,771.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.72 : 14,279.49 = 5,631.90 : x
  2. Step 2: Convert to fraction form
    10,347.72/14,279.49 = 5,631.90/x
  3. Step 3: Cross multiply
    10,347.72x = 14,279.49 × 5,631.90
  4. Step 4: Simplify right side
    10,347.72x = 80,420,659.73
  5. Step 5: Solve for x
    x = 80,420,659.73/10,347.72
  6. Step 6: Final answer
    x = 7,771.82

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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.