Home / 16,030.13-22,121.12-8,956.55

Finding the Fourth Proportional to 16,030.13, 22,121.12 and 8,956.55

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Solution

The fourth proportional to 16,030.13, 22,121.12 and 8,956.55 is: 12,359.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,030.13 : 22,121.12 = 8,956.55 : x
  2. Step 2: Convert to fraction form
    16,030.13/22,121.12 = 8,956.55/x
  3. Step 3: Cross multiply
    16,030.13x = 22,121.12 × 8,956.55
  4. Step 4: Simplify right side
    16,030.13x = 198,128,917.34
  5. Step 5: Solve for x
    x = 198,128,917.34/16,030.13
  6. Step 6: Final answer
    x = 12,359.78

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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.