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Finding the Fourth Proportional to 10,363.30, 15,544.95 and 3,437.80

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Solution

The fourth proportional to 10,363.30, 15,544.95 and 3,437.80 is: 5,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363.30 : 15,544.95 = 3,437.80 : x
  2. Step 2: Convert to fraction form
    10,363.30/15,544.95 = 3,437.80/x
  3. Step 3: Cross multiply
    10,363.30x = 15,544.95 × 3,437.80
  4. Step 4: Simplify right side
    10,363.30x = 53,440,429.11
  5. Step 5: Solve for x
    x = 53,440,429.11/10,363.30
  6. Step 6: Final answer
    x = 5,156.70

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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.