Home / 10,360.40-15,540.32-2,569.12

Finding the Fourth Proportional to 10,360.40, 15,540.32 and 2,569.12

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Solution

The fourth proportional to 10,360.40, 15,540.32 and 2,569.12 is: 3,853.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.40 : 15,540.32 = 2,569.12 : x
  2. Step 2: Convert to fraction form
    10,360.40/15,540.32 = 2,569.12/x
  3. Step 3: Cross multiply
    10,360.40x = 15,540.32 × 2,569.12
  4. Step 4: Simplify right side
    10,360.40x = 39,924,946.92
  5. Step 5: Solve for x
    x = 39,924,946.92/10,360.40
  6. Step 6: Final answer
    x = 3,853.61

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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.