Home / 10,204.25-15,288.89-7,982.19

Finding the Fourth Proportional to 10,204.25, 15,288.89 and 7,982.19

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Solution

The fourth proportional to 10,204.25, 15,288.89 and 7,982.19 is: 11,959.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,204.25 : 15,288.89 = 7,982.19 : x
  2. Step 2: Convert to fraction form
    10,204.25/15,288.89 = 7,982.19/x
  3. Step 3: Cross multiply
    10,204.25x = 15,288.89 × 7,982.19
  4. Step 4: Simplify right side
    10,204.25x = 122,038,784.96
  5. Step 5: Solve for x
    x = 122,038,784.96/10,204.25
  6. Step 6: Final answer
    x = 11,959.61

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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.