Home / 11,446.76-17,178.92-5,123.58

Finding the Fourth Proportional to 11,446.76, 17,178.92 and 5,123.58

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Solution

The fourth proportional to 11,446.76, 17,178.92 and 5,123.58 is: 7,689.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,446.76 : 17,178.92 = 5,123.58 : x
  2. Step 2: Convert to fraction form
    11,446.76/17,178.92 = 5,123.58/x
  3. Step 3: Cross multiply
    11,446.76x = 17,178.92 × 5,123.58
  4. Step 4: Simplify right side
    11,446.76x = 88,017,545.32
  5. Step 5: Solve for x
    x = 88,017,545.32/11,446.76
  6. Step 6: Final answer
    x = 7,689.30

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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.