Home / 19,851.16-29,737.82-11,513.66

Finding the Fourth Proportional to 19,851.16, 29,737.82 and 11,513.66

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Solution

The fourth proportional to 19,851.16, 29,737.82 and 11,513.66 is: 17,247.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.16 : 29,737.82 = 11,513.66 : x
  2. Step 2: Convert to fraction form
    19,851.16/29,737.82 = 11,513.66/x
  3. Step 3: Cross multiply
    19,851.16x = 29,737.82 × 11,513.66
  4. Step 4: Simplify right side
    19,851.16x = 342,391,148.62
  5. Step 5: Solve for x
    x = 342,391,148.62/19,851.16
  6. Step 6: Final answer
    x = 17,247.92

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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.