Home / 16,862.88-25,296.80-5,174.40

Finding the Fourth Proportional to 16,862.88, 25,296.80 and 5,174.40

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Solution

The fourth proportional to 16,862.88, 25,296.80 and 5,174.40 is: 7,762.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,862.88 : 25,296.80 = 5,174.40 : x
  2. Step 2: Convert to fraction form
    16,862.88/25,296.80 = 5,174.40/x
  3. Step 3: Cross multiply
    16,862.88x = 25,296.80 × 5,174.40
  4. Step 4: Simplify right side
    16,862.88x = 130,895,761.92
  5. Step 5: Solve for x
    x = 130,895,761.92/16,862.88
  6. Step 6: Final answer
    x = 7,762.36

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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.