Home / 18,079.38-27,108.92-12,386.77

Finding the Fourth Proportional to 18,079.38, 27,108.92 and 12,386.77

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Solution

The fourth proportional to 18,079.38, 27,108.92 and 12,386.77 is: 18,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,079.38 : 27,108.92 = 12,386.77 : x
  2. Step 2: Convert to fraction form
    18,079.38/27,108.92 = 12,386.77/x
  3. Step 3: Cross multiply
    18,079.38x = 27,108.92 × 12,386.77
  4. Step 4: Simplify right side
    18,079.38x = 335,791,901.34
  5. Step 5: Solve for x
    x = 335,791,901.34/18,079.38
  6. Step 6: Final answer
    x = 18,573.20

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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.