Home / 18,201.28-25,117.50-10,242.88

Finding the Fourth Proportional to 18,201.28, 25,117.50 and 10,242.88

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Solution

The fourth proportional to 18,201.28, 25,117.50 and 10,242.88 is: 14,135.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.28 : 25,117.50 = 10,242.88 : x
  2. Step 2: Convert to fraction form
    18,201.28/25,117.50 = 10,242.88/x
  3. Step 3: Cross multiply
    18,201.28x = 25,117.50 × 10,242.88
  4. Step 4: Simplify right side
    18,201.28x = 257,275,538.40
  5. Step 5: Solve for x
    x = 257,275,538.40/18,201.28
  6. Step 6: Final answer
    x = 14,135.02

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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.