Home / 11,778.28-16,254.08-6,473.20

Finding the Fourth Proportional to 11,778.28, 16,254.08 and 6,473.20

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Solution

The fourth proportional to 11,778.28, 16,254.08 and 6,473.20 is: 8,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.28 : 16,254.08 = 6,473.20 : x
  2. Step 2: Convert to fraction form
    11,778.28/16,254.08 = 6,473.20/x
  3. Step 3: Cross multiply
    11,778.28x = 16,254.08 × 6,473.20
  4. Step 4: Simplify right side
    11,778.28x = 105,215,910.66
  5. Step 5: Solve for x
    x = 105,215,910.66/11,778.28
  6. Step 6: Final answer
    x = 8,933.05

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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.