Home / 18,186.52-27,280.14-9,415.72

Finding the Fourth Proportional to 18,186.52, 27,280.14 and 9,415.72

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Solution

The fourth proportional to 18,186.52, 27,280.14 and 9,415.72 is: 14,123.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,186.52 : 27,280.14 = 9,415.72 : x
  2. Step 2: Convert to fraction form
    18,186.52/27,280.14 = 9,415.72/x
  3. Step 3: Cross multiply
    18,186.52x = 27,280.14 × 9,415.72
  4. Step 4: Simplify right side
    18,186.52x = 256,862,159.80
  5. Step 5: Solve for x
    x = 256,862,159.80/18,186.52
  6. Step 6: Final answer
    x = 14,123.77

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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.