Home / 14,079.57-19,434.13-8,115.21

Finding the Fourth Proportional to 14,079.57, 19,434.13 and 8,115.21

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Solution

The fourth proportional to 14,079.57, 19,434.13 and 8,115.21 is: 11,201.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.57 : 19,434.13 = 8,115.21 : x
  2. Step 2: Convert to fraction form
    14,079.57/19,434.13 = 8,115.21/x
  3. Step 3: Cross multiply
    14,079.57x = 19,434.13 × 8,115.21
  4. Step 4: Simplify right side
    14,079.57x = 157,711,952.95
  5. Step 5: Solve for x
    x = 157,711,952.95/14,079.57
  6. Step 6: Final answer
    x = 11,201.48

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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.