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Finding the Fourth Proportional to 8,778.48, 13,171.44 and 4,617.48

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Solution

The fourth proportional to 8,778.48, 13,171.44 and 4,617.48 is: 6,928.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.48 : 13,171.44 = 4,617.48 : x
  2. Step 2: Convert to fraction form
    8,778.48/13,171.44 = 4,617.48/x
  3. Step 3: Cross multiply
    8,778.48x = 13,171.44 × 4,617.48
  4. Step 4: Simplify right side
    8,778.48x = 60,818,860.77
  5. Step 5: Solve for x
    x = 60,818,860.77/8,778.48
  6. Step 6: Final answer
    x = 6,928.18

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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.