Home / 18,122.13-27,151.73-9,807.87

Finding the Fourth Proportional to 18,122.13, 27,151.73 and 9,807.87

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Solution

The fourth proportional to 18,122.13, 27,151.73 and 9,807.87 is: 14,694.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,122.13 : 27,151.73 = 9,807.87 : x
  2. Step 2: Convert to fraction form
    18,122.13/27,151.73 = 9,807.87/x
  3. Step 3: Cross multiply
    18,122.13x = 27,151.73 × 9,807.87
  4. Step 4: Simplify right side
    18,122.13x = 266,300,589.08
  5. Step 5: Solve for x
    x = 266,300,589.08/18,122.13
  6. Step 6: Final answer
    x = 14,694.77

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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.