Home / 18,151.56-27,215.28-8,772.84

Finding the Fourth Proportional to 18,151.56, 27,215.28 and 8,772.84

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Solution

The fourth proportional to 18,151.56, 27,215.28 and 8,772.84 is: 13,153.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.56 : 27,215.28 = 8,772.84 : x
  2. Step 2: Convert to fraction form
    18,151.56/27,215.28 = 8,772.84/x
  3. Step 3: Cross multiply
    18,151.56x = 27,215.28 × 8,772.84
  4. Step 4: Simplify right side
    18,151.56x = 238,755,297.00
  5. Step 5: Solve for x
    x = 238,755,297.00/18,151.56
  6. Step 6: Final answer
    x = 13,153.43

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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.