Home / 18,121.29-27,177.02-4,970.55

Finding the Fourth Proportional to 18,121.29, 27,177.02 and 4,970.55

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Solution

The fourth proportional to 18,121.29, 27,177.02 and 4,970.55 is: 7,454.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.29 : 27,177.02 = 4,970.55 : x
  2. Step 2: Convert to fraction form
    18,121.29/27,177.02 = 4,970.55/x
  3. Step 3: Cross multiply
    18,121.29x = 27,177.02 × 4,970.55
  4. Step 4: Simplify right side
    18,121.29x = 135,084,711.91
  5. Step 5: Solve for x
    x = 135,084,711.91/18,121.29
  6. Step 6: Final answer
    x = 7,454.48

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1.5x scale

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.