Home / 18,131.40-27,153.30-10,316.52

Finding the Fourth Proportional to 18,131.40, 27,153.30 and 10,316.52

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Solution

The fourth proportional to 18,131.40, 27,153.30 and 10,316.52 is: 15,449.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.40 : 27,153.30 = 10,316.52 : x
  2. Step 2: Convert to fraction form
    18,131.40/27,153.30 = 10,316.52/x
  3. Step 3: Cross multiply
    18,131.40x = 27,153.30 × 10,316.52
  4. Step 4: Simplify right side
    18,131.40x = 280,127,562.52
  5. Step 5: Solve for x
    x = 280,127,562.52/18,131.40
  6. Step 6: Final answer
    x = 15,449.86

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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.