Home / 14,108.40-19,472.13-8,139.24

Finding the Fourth Proportional to 14,108.40, 19,472.13 and 8,139.24

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Solution

The fourth proportional to 14,108.40, 19,472.13 and 8,139.24 is: 11,233.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.40 : 19,472.13 = 8,139.24 : x
  2. Step 2: Convert to fraction form
    14,108.40/19,472.13 = 8,139.24/x
  3. Step 3: Cross multiply
    14,108.40x = 19,472.13 × 8,139.24
  4. Step 4: Simplify right side
    14,108.40x = 158,488,339.38
  5. Step 5: Solve for x
    x = 158,488,339.38/14,108.40
  6. Step 6: Final answer
    x = 11,233.62

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Half scale
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Double scale
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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.