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Finding the Fourth Proportional to 14,422.77, 19,901.72 and 8,371.61

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Solution

The fourth proportional to 14,422.77, 19,901.72 and 8,371.61 is: 11,551.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,422.77 : 19,901.72 = 8,371.61 : x
  2. Step 2: Convert to fraction form
    14,422.77/19,901.72 = 8,371.61/x
  3. Step 3: Cross multiply
    14,422.77x = 19,901.72 × 8,371.61
  4. Step 4: Simplify right side
    14,422.77x = 166,609,471.54
  5. Step 5: Solve for x
    x = 166,609,471.54/14,422.77
  6. Step 6: Final answer
    x = 11,551.84

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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.