Home / 7,481.03-10,330.80-4,691.39

Finding the Fourth Proportional to 7,481.03, 10,330.80 and 4,691.39

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Solution

The fourth proportional to 7,481.03, 10,330.80 and 4,691.39 is: 6,478.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.03 : 10,330.80 = 4,691.39 : x
  2. Step 2: Convert to fraction form
    7,481.03/10,330.80 = 4,691.39/x
  3. Step 3: Cross multiply
    7,481.03x = 10,330.80 × 4,691.39
  4. Step 4: Simplify right side
    7,481.03x = 48,465,811.81
  5. Step 5: Solve for x
    x = 48,465,811.81/7,481.03
  6. Step 6: Final answer
    x = 6,478.49

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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.