Home / 11,314.49-15,613.20-6,278.54

Finding the Fourth Proportional to 11,314.49, 15,613.20 and 6,278.54

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Solution

The fourth proportional to 11,314.49, 15,613.20 and 6,278.54 is: 8,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,314.49 : 15,613.20 = 6,278.54 : x
  2. Step 2: Convert to fraction form
    11,314.49/15,613.20 = 6,278.54/x
  3. Step 3: Cross multiply
    11,314.49x = 15,613.20 × 6,278.54
  4. Step 4: Simplify right side
    11,314.49x = 98,028,022.66
  5. Step 5: Solve for x
    x = 98,028,022.66/11,314.49
  6. Step 6: Final answer
    x = 8,663.94

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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.