Home / 14,718.25-20,311.19-8,431.03

Finding the Fourth Proportional to 14,718.25, 20,311.19 and 8,431.03

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Solution

The fourth proportional to 14,718.25, 20,311.19 and 8,431.03 is: 11,634.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.25 : 20,311.19 = 8,431.03 : x
  2. Step 2: Convert to fraction form
    14,718.25/20,311.19 = 8,431.03/x
  3. Step 3: Cross multiply
    14,718.25x = 20,311.19 × 8,431.03
  4. Step 4: Simplify right side
    14,718.25x = 171,244,252.23
  5. Step 5: Solve for x
    x = 171,244,252.23/14,718.25
  6. Step 6: Final answer
    x = 11,634.82

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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.