Home / 15,042.49-20,758.39-8,327.97

Finding the Fourth Proportional to 15,042.49, 20,758.39 and 8,327.97

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Solution

The fourth proportional to 15,042.49, 20,758.39 and 8,327.97 is: 11,492.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,042.49 : 20,758.39 = 8,327.97 : x
  2. Step 2: Convert to fraction form
    15,042.49/20,758.39 = 8,327.97/x
  3. Step 3: Cross multiply
    15,042.49x = 20,758.39 × 8,327.97
  4. Step 4: Simplify right side
    15,042.49x = 172,875,249.17
  5. Step 5: Solve for x
    x = 172,875,249.17/15,042.49
  6. Step 6: Final answer
    x = 11,492.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.