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Finding the Fourth Proportional to 14,988.92, 22,489.99 and 7,871.47

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Solution

The fourth proportional to 14,988.92, 22,489.99 and 7,871.47 is: 11,810.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,988.92 : 22,489.99 = 7,871.47 : x
  2. Step 2: Convert to fraction form
    14,988.92/22,489.99 = 7,871.47/x
  3. Step 3: Cross multiply
    14,988.92x = 22,489.99 × 7,871.47
  4. Step 4: Simplify right side
    14,988.92x = 177,029,205.68
  5. Step 5: Solve for x
    x = 177,029,205.68/14,988.92
  6. Step 6: Final answer
    x = 11,810.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.