Home / 14,001.28-20,983.20-10,286.08

Finding the Fourth Proportional to 14,001.28, 20,983.20 and 10,286.08

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Solution

The fourth proportional to 14,001.28, 20,983.20 and 10,286.08 is: 15,415.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.28 : 20,983.20 = 10,286.08 : x
  2. Step 2: Convert to fraction form
    14,001.28/20,983.20 = 10,286.08/x
  3. Step 3: Cross multiply
    14,001.28x = 20,983.20 × 10,286.08
  4. Step 4: Simplify right side
    14,001.28x = 215,834,873.86
  5. Step 5: Solve for x
    x = 215,834,873.86/14,001.28
  6. Step 6: Final answer
    x = 15,415.37

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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.