Home / 16,160.55-22,301.30-8,990.39

Finding the Fourth Proportional to 16,160.55, 22,301.30 and 8,990.39

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Solution

The fourth proportional to 16,160.55, 22,301.30 and 8,990.39 is: 12,406.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,160.55 : 22,301.30 = 8,990.39 : x
  2. Step 2: Convert to fraction form
    16,160.55/22,301.30 = 8,990.39/x
  3. Step 3: Cross multiply
    16,160.55x = 22,301.30 × 8,990.39
  4. Step 4: Simplify right side
    16,160.55x = 200,497,228.05
  5. Step 5: Solve for x
    x = 200,497,228.05/16,160.55
  6. Step 6: Final answer
    x = 12,406.58

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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.