Home / 11,545.57-17,290.87-7,372.65

Finding the Fourth Proportional to 11,545.57, 17,290.87 and 7,372.65

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Solution

The fourth proportional to 11,545.57, 17,290.87 and 7,372.65 is: 11,041.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,545.57 : 17,290.87 = 7,372.65 : x
  2. Step 2: Convert to fraction form
    11,545.57/17,290.87 = 7,372.65/x
  3. Step 3: Cross multiply
    11,545.57x = 17,290.87 × 7,372.65
  4. Step 4: Simplify right side
    11,545.57x = 127,479,579.11
  5. Step 5: Solve for x
    x = 127,479,579.11/11,545.57
  6. Step 6: Final answer
    x = 11,041.43

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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.