Home / 16,045.20-22,142.40-8,971.68

Finding the Fourth Proportional to 16,045.20, 22,142.40 and 8,971.68

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Solution

The fourth proportional to 16,045.20, 22,142.40 and 8,971.68 is: 12,380.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,045.20 : 22,142.40 = 8,971.68 : x
  2. Step 2: Convert to fraction form
    16,045.20/22,142.40 = 8,971.68/x
  3. Step 3: Cross multiply
    16,045.20x = 22,142.40 × 8,971.68
  4. Step 4: Simplify right side
    16,045.20x = 198,654,527.23
  5. Step 5: Solve for x
    x = 198,654,527.23/16,045.20
  6. Step 6: Final answer
    x = 12,380.93

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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.