Home / 8,318.53-11,476.78-5,174.52

Finding the Fourth Proportional to 8,318.53, 11,476.78 and 5,174.52

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Solution

The fourth proportional to 8,318.53, 11,476.78 and 5,174.52 is: 7,139.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.53 : 11,476.78 = 5,174.52 : x
  2. Step 2: Convert to fraction form
    8,318.53/11,476.78 = 5,174.52/x
  3. Step 3: Cross multiply
    8,318.53x = 11,476.78 × 5,174.52
  4. Step 4: Simplify right side
    8,318.53x = 59,386,827.65
  5. Step 5: Solve for x
    x = 59,386,827.65/8,318.53
  6. Step 6: Final answer
    x = 7,139.10

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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.