Home / 7,518.56-10,375.33-4,115.65

Finding the Fourth Proportional to 7,518.56, 10,375.33 and 4,115.65

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Solution

The fourth proportional to 7,518.56, 10,375.33 and 4,115.65 is: 5,679.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.56 : 10,375.33 = 4,115.65 : x
  2. Step 2: Convert to fraction form
    7,518.56/10,375.33 = 4,115.65/x
  3. Step 3: Cross multiply
    7,518.56x = 10,375.33 × 4,115.65
  4. Step 4: Simplify right side
    7,518.56x = 42,701,226.91
  5. Step 5: Solve for x
    x = 42,701,226.91/7,518.56
  6. Step 6: Final answer
    x = 5,679.44

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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.