Home / 13,332.20-18,476.19-13,144.28

Finding the Fourth Proportional to 13,332.20, 18,476.19 and 13,144.28

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Solution

The fourth proportional to 13,332.20, 18,476.19 and 13,144.28 is: 18,215.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,332.20 : 18,476.19 = 13,144.28 : x
  2. Step 2: Convert to fraction form
    13,332.20/18,476.19 = 13,144.28/x
  3. Step 3: Cross multiply
    13,332.20x = 18,476.19 × 13,144.28
  4. Step 4: Simplify right side
    13,332.20x = 242,856,214.69
  5. Step 5: Solve for x
    x = 242,856,214.69/13,332.20
  6. Step 6: Final answer
    x = 18,215.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.