Home / 14,086.87-19,434.19-8,115.35

Finding the Fourth Proportional to 14,086.87, 19,434.19 and 8,115.35

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Solution

The fourth proportional to 14,086.87, 19,434.19 and 8,115.35 is: 11,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,086.87 : 19,434.19 = 8,115.35 : x
  2. Step 2: Convert to fraction form
    14,086.87/19,434.19 = 8,115.35/x
  3. Step 3: Cross multiply
    14,086.87x = 19,434.19 × 8,115.35
  4. Step 4: Simplify right side
    14,086.87x = 157,715,253.82
  5. Step 5: Solve for x
    x = 157,715,253.82/14,086.87
  6. Step 6: Final answer
    x = 11,195.90

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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.