Home / 7,613.10-11,423.88-3,717.54

Finding the Fourth Proportional to 7,613.10, 11,423.88 and 3,717.54

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Solution

The fourth proportional to 7,613.10, 11,423.88 and 3,717.54 is: 5,578.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.10 : 11,423.88 = 3,717.54 : x
  2. Step 2: Convert to fraction form
    7,613.10/11,423.88 = 3,717.54/x
  3. Step 3: Cross multiply
    7,613.10x = 11,423.88 × 3,717.54
  4. Step 4: Simplify right side
    7,613.10x = 42,468,730.86
  5. Step 5: Solve for x
    x = 42,468,730.86/7,613.10
  6. Step 6: Final answer
    x = 5,578.38

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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.