Home / 8,878.59-13,316.70-2,638.49

Finding the Fourth Proportional to 8,878.59, 13,316.70 and 2,638.49

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Solution

The fourth proportional to 8,878.59, 13,316.70 and 2,638.49 is: 3,957.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.59 : 13,316.70 = 2,638.49 : x
  2. Step 2: Convert to fraction form
    8,878.59/13,316.70 = 2,638.49/x
  3. Step 3: Cross multiply
    8,878.59x = 13,316.70 × 2,638.49
  4. Step 4: Simplify right side
    8,878.59x = 35,135,923.09
  5. Step 5: Solve for x
    x = 35,135,923.09/8,878.59
  6. Step 6: Final answer
    x = 3,957.38

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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.