Home / 12,057.28-16,621.92-8,864.94

Finding the Fourth Proportional to 12,057.28, 16,621.92 and 8,864.94

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Solution

The fourth proportional to 12,057.28, 16,621.92 and 8,864.94 is: 12,221.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,057.28 : 16,621.92 = 8,864.94 : x
  2. Step 2: Convert to fraction form
    12,057.28/16,621.92 = 8,864.94/x
  3. Step 3: Cross multiply
    12,057.28x = 16,621.92 × 8,864.94
  4. Step 4: Simplify right side
    12,057.28x = 147,352,323.48
  5. Step 5: Solve for x
    x = 147,352,323.48/12,057.28
  6. Step 6: Final answer
    x = 12,221.03

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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.