Home / 15,128.76-22,696.02-4,737.72

Finding the Fourth Proportional to 15,128.76, 22,696.02 and 4,737.72

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Solution

The fourth proportional to 15,128.76, 22,696.02 and 4,737.72 is: 7,107.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.76 : 22,696.02 = 4,737.72 : x
  2. Step 2: Convert to fraction form
    15,128.76/22,696.02 = 4,737.72/x
  3. Step 3: Cross multiply
    15,128.76x = 22,696.02 × 4,737.72
  4. Step 4: Simplify right side
    15,128.76x = 107,527,387.87
  5. Step 5: Solve for x
    x = 107,527,387.87/15,128.76
  6. Step 6: Final answer
    x = 7,107.48

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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.