Home / 11,718.18-16,174.49-6,685.11

Finding the Fourth Proportional to 11,718.18, 16,174.49 and 6,685.11

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Solution

The fourth proportional to 11,718.18, 16,174.49 and 6,685.11 is: 9,227.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.18 : 16,174.49 = 6,685.11 : x
  2. Step 2: Convert to fraction form
    11,718.18/16,174.49 = 6,685.11/x
  3. Step 3: Cross multiply
    11,718.18x = 16,174.49 × 6,685.11
  4. Step 4: Simplify right side
    11,718.18x = 108,128,211.42
  5. Step 5: Solve for x
    x = 108,128,211.42/11,718.18
  6. Step 6: Final answer
    x = 9,227.39

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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.