Home / 8,987.43-13,414.60-8,433.39

Finding the Fourth Proportional to 8,987.43, 13,414.60 and 8,433.39

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Solution

The fourth proportional to 8,987.43, 13,414.60 and 8,433.39 is: 12,587.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.43 : 13,414.60 = 8,433.39 : x
  2. Step 2: Convert to fraction form
    8,987.43/13,414.60 = 8,433.39/x
  3. Step 3: Cross multiply
    8,987.43x = 13,414.60 × 8,433.39
  4. Step 4: Simplify right side
    8,987.43x = 113,130,553.49
  5. Step 5: Solve for x
    x = 113,130,553.49/8,987.43
  6. Step 6: Final answer
    x = 12,587.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.