Home / 15,990.53-22,066.39-8,820.73

Finding the Fourth Proportional to 15,990.53, 22,066.39 and 8,820.73

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Solution

The fourth proportional to 15,990.53, 22,066.39 and 8,820.73 is: 12,172.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.53 : 22,066.39 = 8,820.73 : x
  2. Step 2: Convert to fraction form
    15,990.53/22,066.39 = 8,820.73/x
  3. Step 3: Cross multiply
    15,990.53x = 22,066.39 × 8,820.73
  4. Step 4: Simplify right side
    15,990.53x = 194,641,706.87
  5. Step 5: Solve for x
    x = 194,641,706.87/15,990.53
  6. Step 6: Final answer
    x = 12,172.31

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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.