Home / 16,091.28-22,206.72-8,921.91

Finding the Fourth Proportional to 16,091.28, 22,206.72 and 8,921.91

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Solution

The fourth proportional to 16,091.28, 22,206.72 and 8,921.91 is: 12,312.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,091.28 : 22,206.72 = 8,921.91 : x
  2. Step 2: Convert to fraction form
    16,091.28/22,206.72 = 8,921.91/x
  3. Step 3: Cross multiply
    16,091.28x = 22,206.72 × 8,921.91
  4. Step 4: Simplify right side
    16,091.28x = 198,126,357.24
  5. Step 5: Solve for x
    x = 198,126,357.24/16,091.28
  6. Step 6: Final answer
    x = 12,312.65

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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.