Home / 10,347.18-14,279.43-5,631.78

Finding the Fourth Proportional to 10,347.18, 14,279.43 and 5,631.78

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Solution

The fourth proportional to 10,347.18, 14,279.43 and 5,631.78 is: 7,772.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.18 : 14,279.43 = 5,631.78 : x
  2. Step 2: Convert to fraction form
    10,347.18/14,279.43 = 5,631.78/x
  3. Step 3: Cross multiply
    10,347.18x = 14,279.43 × 5,631.78
  4. Step 4: Simplify right side
    10,347.18x = 80,418,608.29
  5. Step 5: Solve for x
    x = 80,418,608.29/10,347.18
  6. Step 6: Final answer
    x = 7,772.03

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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.