Home / 12,134.14-16,750.28-8,157.56

Finding the Fourth Proportional to 12,134.14, 16,750.28 and 8,157.56

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Solution

The fourth proportional to 12,134.14, 16,750.28 and 8,157.56 is: 11,260.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,134.14 : 16,750.28 = 8,157.56 : x
  2. Step 2: Convert to fraction form
    12,134.14/16,750.28 = 8,157.56/x
  3. Step 3: Cross multiply
    12,134.14x = 16,750.28 × 8,157.56
  4. Step 4: Simplify right side
    12,134.14x = 136,641,460.55
  5. Step 5: Solve for x
    x = 136,641,460.55/12,134.14
  6. Step 6: Final answer
    x = 11,260.91

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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.