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Finding the Fourth Proportional to 8,758.73, 13,138.28 and 2,518.95

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Solution

The fourth proportional to 8,758.73, 13,138.28 and 2,518.95 is: 3,778.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.73 : 13,138.28 = 2,518.95 : x
  2. Step 2: Convert to fraction form
    8,758.73/13,138.28 = 2,518.95/x
  3. Step 3: Cross multiply
    8,758.73x = 13,138.28 × 2,518.95
  4. Step 4: Simplify right side
    8,758.73x = 33,094,657.81
  5. Step 5: Solve for x
    x = 33,094,657.81/8,758.73
  6. Step 6: Final answer
    x = 3,778.48

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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.