Home / 15,982.41-22,055.85-8,812.16

Finding the Fourth Proportional to 15,982.41, 22,055.85 and 8,812.16

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Solution

The fourth proportional to 15,982.41, 22,055.85 and 8,812.16 is: 12,160.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.41 : 22,055.85 = 8,812.16 : x
  2. Step 2: Convert to fraction form
    15,982.41/22,055.85 = 8,812.16/x
  3. Step 3: Cross multiply
    15,982.41x = 22,055.85 × 8,812.16
  4. Step 4: Simplify right side
    15,982.41x = 194,359,568.86
  5. Step 5: Solve for x
    x = 194,359,568.86/15,982.41
  6. Step 6: Final answer
    x = 12,160.84

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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.