Home / 15,132.80-22,696.20-5,272.64

Finding the Fourth Proportional to 15,132.80, 22,696.20 and 5,272.64

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Solution

The fourth proportional to 15,132.80, 22,696.20 and 5,272.64 is: 7,907.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132.80 : 22,696.20 = 5,272.64 : x
  2. Step 2: Convert to fraction form
    15,132.80/22,696.20 = 5,272.64/x
  3. Step 3: Cross multiply
    15,132.80x = 22,696.20 × 5,272.64
  4. Step 4: Simplify right side
    15,132.80x = 119,668,891.97
  5. Step 5: Solve for x
    x = 119,668,891.97/15,132.80
  6. Step 6: Final answer
    x = 7,907.91

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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.