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Finding the Fourth Proportional to 8,888.80, 13,335.36 and 2,648.76

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Solution

The fourth proportional to 8,888.80, 13,335.36 and 2,648.76 is: 3,973.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.80 : 13,335.36 = 2,648.76 : x
  2. Step 2: Convert to fraction form
    8,888.80/13,335.36 = 2,648.76/x
  3. Step 3: Cross multiply
    8,888.80x = 13,335.36 × 2,648.76
  4. Step 4: Simplify right side
    8,888.80x = 35,322,168.15
  5. Step 5: Solve for x
    x = 35,322,168.15/8,888.80
  6. Step 6: Final answer
    x = 3,973.78

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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.