Home / 10,244.40-15,369-3,318.90

Finding the Fourth Proportional to 10,244.40, 15,369 and 3,318.90

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Solution

The fourth proportional to 10,244.40, 15,369 and 3,318.90 is: 4,979.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,244.40 : 15,369 = 3,318.90 : x
  2. Step 2: Convert to fraction form
    10,244.40/15,369 = 3,318.90/x
  3. Step 3: Cross multiply
    10,244.40x = 15,369 × 3,318.90
  4. Step 4: Simplify right side
    10,244.40x = 51,008,174.10
  5. Step 5: Solve for x
    x = 51,008,174.10/10,244.40
  6. Step 6: Final answer
    x = 4,979.13

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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.