Home / 10,639.89-15,959.88-3,714.39

Finding the Fourth Proportional to 10,639.89, 15,959.88 and 3,714.39

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Solution

The fourth proportional to 10,639.89, 15,959.88 and 3,714.39 is: 5,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.89 : 15,959.88 = 3,714.39 : x
  2. Step 2: Convert to fraction form
    10,639.89/15,959.88 = 3,714.39/x
  3. Step 3: Cross multiply
    10,639.89x = 15,959.88 × 3,714.39
  4. Step 4: Simplify right side
    10,639.89x = 59,281,218.67
  5. Step 5: Solve for x
    x = 59,281,218.67/10,639.89
  6. Step 6: Final answer
    x = 5,571.60

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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.