Home / 18,212.08-25,132.28-10,145.70

Finding the Fourth Proportional to 18,212.08, 25,132.28 and 10,145.70

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Solution

The fourth proportional to 18,212.08, 25,132.28 and 10,145.70 is: 14,000.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.08 : 25,132.28 = 10,145.70 : x
  2. Step 2: Convert to fraction form
    18,212.08/25,132.28 = 10,145.70/x
  3. Step 3: Cross multiply
    18,212.08x = 25,132.28 × 10,145.70
  4. Step 4: Simplify right side
    18,212.08x = 254,984,573.20
  5. Step 5: Solve for x
    x = 254,984,573.20/18,212.08
  6. Step 6: Final answer
    x = 14,000.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.