Home / 15,982.69-22,056.26-8,812.86

Finding the Fourth Proportional to 15,982.69, 22,056.26 and 8,812.86

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Solution

The fourth proportional to 15,982.69, 22,056.26 and 8,812.86 is: 12,161.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.69 : 22,056.26 = 8,812.86 : x
  2. Step 2: Convert to fraction form
    15,982.69/22,056.26 = 8,812.86/x
  3. Step 3: Cross multiply
    15,982.69x = 22,056.26 × 8,812.86
  4. Step 4: Simplify right side
    15,982.69x = 194,378,577.16
  5. Step 5: Solve for x
    x = 194,378,577.16/15,982.69
  6. Step 6: Final answer
    x = 12,161.82

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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.