Home / 18,001.32-27,001.98-5,521.38

Finding the Fourth Proportional to 18,001.32, 27,001.98 and 5,521.38

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Solution

The fourth proportional to 18,001.32, 27,001.98 and 5,521.38 is: 8,282.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001.32 : 27,001.98 = 5,521.38 : x
  2. Step 2: Convert to fraction form
    18,001.32/27,001.98 = 5,521.38/x
  3. Step 3: Cross multiply
    18,001.32x = 27,001.98 × 5,521.38
  4. Step 4: Simplify right side
    18,001.32x = 149,088,192.33
  5. Step 5: Solve for x
    x = 149,088,192.33/18,001.32
  6. Step 6: Final answer
    x = 8,282.07

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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.