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Finding the Fourth Proportional to 8,878.68, 13,322.79 and 3,335.85

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Solution

The fourth proportional to 8,878.68, 13,322.79 and 3,335.85 is: 5,005.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.68 : 13,322.79 = 3,335.85 : x
  2. Step 2: Convert to fraction form
    8,878.68/13,322.79 = 3,335.85/x
  3. Step 3: Cross multiply
    8,878.68x = 13,322.79 × 3,335.85
  4. Step 4: Simplify right side
    8,878.68x = 44,442,829.02
  5. Step 5: Solve for x
    x = 44,442,829.02/8,878.68
  6. Step 6: Final answer
    x = 5,005.57

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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.