Home / 8,278.32-11,425.12-5,134.98

Finding the Fourth Proportional to 8,278.32, 11,425.12 and 5,134.98

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Solution

The fourth proportional to 8,278.32, 11,425.12 and 5,134.98 is: 7,086.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278.32 : 11,425.12 = 5,134.98 : x
  2. Step 2: Convert to fraction form
    8,278.32/11,425.12 = 5,134.98/x
  3. Step 3: Cross multiply
    8,278.32x = 11,425.12 × 5,134.98
  4. Step 4: Simplify right side
    8,278.32x = 58,667,762.70
  5. Step 5: Solve for x
    x = 58,667,762.70/8,278.32
  6. Step 6: Final answer
    x = 7,086.92

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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.