Home / 10,178.31-15,198.15-8,982.39

Finding the Fourth Proportional to 10,178.31, 15,198.15 and 8,982.39

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Solution

The fourth proportional to 10,178.31, 15,198.15 and 8,982.39 is: 13,412.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.31 : 15,198.15 = 8,982.39 : x
  2. Step 2: Convert to fraction form
    10,178.31/15,198.15 = 8,982.39/x
  3. Step 3: Cross multiply
    10,178.31x = 15,198.15 × 8,982.39
  4. Step 4: Simplify right side
    10,178.31x = 136,515,710.58
  5. Step 5: Solve for x
    x = 136,515,710.58/10,178.31
  6. Step 6: Final answer
    x = 13,412.41

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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.