Home / 11,340.78-16,982.01-9,591.18

Finding the Fourth Proportional to 11,340.78, 16,982.01 and 9,591.18

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Solution

The fourth proportional to 11,340.78, 16,982.01 and 9,591.18 is: 14,362.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.78 : 16,982.01 = 9,591.18 : x
  2. Step 2: Convert to fraction form
    11,340.78/16,982.01 = 9,591.18/x
  3. Step 3: Cross multiply
    11,340.78x = 16,982.01 × 9,591.18
  4. Step 4: Simplify right side
    11,340.78x = 162,877,514.67
  5. Step 5: Solve for x
    x = 162,877,514.67/11,340.78
  6. Step 6: Final answer
    x = 14,362.11

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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.