Home / 15,982.92-22,056.53-8,909.79

Finding the Fourth Proportional to 15,982.92, 22,056.53 and 8,909.79

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Solution

The fourth proportional to 15,982.92, 22,056.53 and 8,909.79 is: 12,295.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.92 : 22,056.53 = 8,909.79 : x
  2. Step 2: Convert to fraction form
    15,982.92/22,056.53 = 8,909.79/x
  3. Step 3: Cross multiply
    15,982.92x = 22,056.53 × 8,909.79
  4. Step 4: Simplify right side
    15,982.92x = 196,519,050.43
  5. Step 5: Solve for x
    x = 196,519,050.43/15,982.92
  6. Step 6: Final answer
    x = 12,295.57

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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.