Home / 14,489.82-19,995.57-8,520.12

Finding the Fourth Proportional to 14,489.82, 19,995.57 and 8,520.12

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Solution

The fourth proportional to 14,489.82, 19,995.57 and 8,520.12 is: 11,757.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,489.82 : 19,995.57 = 8,520.12 : x
  2. Step 2: Convert to fraction form
    14,489.82/19,995.57 = 8,520.12/x
  3. Step 3: Cross multiply
    14,489.82x = 19,995.57 × 8,520.12
  4. Step 4: Simplify right side
    14,489.82x = 170,364,655.87
  5. Step 5: Solve for x
    x = 170,364,655.87/14,489.82
  6. Step 6: Final answer
    x = 11,757.54

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Double scale
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Similar ratio
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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.