Home / 13,534.40-20,279.64-6,951.44

Finding the Fourth Proportional to 13,534.40, 20,279.64 and 6,951.44

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Solution

The fourth proportional to 13,534.40, 20,279.64 and 6,951.44 is: 10,415.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,534.40 : 20,279.64 = 6,951.44 : x
  2. Step 2: Convert to fraction form
    13,534.40/20,279.64 = 6,951.44/x
  3. Step 3: Cross multiply
    13,534.40x = 20,279.64 × 6,951.44
  4. Step 4: Simplify right side
    13,534.40x = 140,972,700.68
  5. Step 5: Solve for x
    x = 140,972,700.68/13,534.40
  6. Step 6: Final answer
    x = 10,415.88

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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.