Home / 15,982.68-22,056.20-8,909.55

Finding the Fourth Proportional to 15,982.68, 22,056.20 and 8,909.55

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Solution

The fourth proportional to 15,982.68, 22,056.20 and 8,909.55 is: 12,295.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.68 : 22,056.20 = 8,909.55 : x
  2. Step 2: Convert to fraction form
    15,982.68/22,056.20 = 8,909.55/x
  3. Step 3: Cross multiply
    15,982.68x = 22,056.20 × 8,909.55
  4. Step 4: Simplify right side
    15,982.68x = 196,510,772.16
  5. Step 5: Solve for x
    x = 196,510,772.16/15,982.68
  6. Step 6: Final answer
    x = 12,295.23

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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.