Home / 8,316.26-11,475.13-4,778.79

Finding the Fourth Proportional to 8,316.26, 11,475.13 and 4,778.79

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Solution

The fourth proportional to 8,316.26, 11,475.13 and 4,778.79 is: 6,593.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.26 : 11,475.13 = 4,778.79 : x
  2. Step 2: Convert to fraction form
    8,316.26/11,475.13 = 4,778.79/x
  3. Step 3: Cross multiply
    8,316.26x = 11,475.13 × 4,778.79
  4. Step 4: Simplify right side
    8,316.26x = 54,837,236.49
  5. Step 5: Solve for x
    x = 54,837,236.49/8,316.26
  6. Step 6: Final answer
    x = 6,593.98

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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.