Home / 11,178.40-16,757.16-4,156.71

Finding the Fourth Proportional to 11,178.40, 16,757.16 and 4,156.71

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Solution

The fourth proportional to 11,178.40, 16,757.16 and 4,156.71 is: 6,231.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.40 : 16,757.16 = 4,156.71 : x
  2. Step 2: Convert to fraction form
    11,178.40/16,757.16 = 4,156.71/x
  3. Step 3: Cross multiply
    11,178.40x = 16,757.16 × 4,156.71
  4. Step 4: Simplify right side
    11,178.40x = 69,654,570.76
  5. Step 5: Solve for x
    x = 69,654,570.76/11,178.40
  6. Step 6: Final answer
    x = 6,231.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.