Home / 10,002.38-15,012.66-5,326.31

Finding the Fourth Proportional to 10,002.38, 15,012.66 and 5,326.31

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Solution

The fourth proportional to 10,002.38, 15,012.66 and 5,326.31 is: 7,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,002.38 : 15,012.66 = 5,326.31 : x
  2. Step 2: Convert to fraction form
    10,002.38/15,012.66 = 5,326.31/x
  3. Step 3: Cross multiply
    10,002.38x = 15,012.66 × 5,326.31
  4. Step 4: Simplify right side
    10,002.38x = 79,962,006.02
  5. Step 5: Solve for x
    x = 79,962,006.02/10,002.38
  6. Step 6: Final answer
    x = 7,994.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.