Home / 7,589.10-11,378.12-5,117.78

Finding the Fourth Proportional to 7,589.10, 11,378.12 and 5,117.78

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Solution

The fourth proportional to 7,589.10, 11,378.12 and 5,117.78 is: 7,672.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,589.10 : 11,378.12 = 5,117.78 : x
  2. Step 2: Convert to fraction form
    7,589.10/11,378.12 = 5,117.78/x
  3. Step 3: Cross multiply
    7,589.10x = 11,378.12 × 5,117.78
  4. Step 4: Simplify right side
    7,589.10x = 58,230,714.97
  5. Step 5: Solve for x
    x = 58,230,714.97/7,589.10
  6. Step 6: Final answer
    x = 7,672.94

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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.