Home / 18,219.17-25,142.60-10,260.65

Finding the Fourth Proportional to 18,219.17, 25,142.60 and 10,260.65

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Solution

The fourth proportional to 18,219.17, 25,142.60 and 10,260.65 is: 14,159.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.17 : 25,142.60 = 10,260.65 : x
  2. Step 2: Convert to fraction form
    18,219.17/25,142.60 = 10,260.65/x
  3. Step 3: Cross multiply
    18,219.17x = 25,142.60 × 10,260.65
  4. Step 4: Simplify right side
    18,219.17x = 257,979,367.39
  5. Step 5: Solve for x
    x = 257,979,367.39/18,219.17
  6. Step 6: Final answer
    x = 14,159.78

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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.