Home / 14,489.82-19,988.64-8,517.69

Finding the Fourth Proportional to 14,489.82, 19,988.64 and 8,517.69

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Solution

The fourth proportional to 14,489.82, 19,988.64 and 8,517.69 is: 11,750.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,489.82 : 19,988.64 = 8,517.69 : x
  2. Step 2: Convert to fraction form
    14,489.82/19,988.64 = 8,517.69/x
  3. Step 3: Cross multiply
    14,489.82x = 19,988.64 × 8,517.69
  4. Step 4: Simplify right side
    14,489.82x = 170,257,039.04
  5. Step 5: Solve for x
    x = 170,257,039.04/14,489.82
  6. Step 6: Final answer
    x = 11,750.11

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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.