Home / 10,359.78-15,539.65-2,568.59

Finding the Fourth Proportional to 10,359.78, 15,539.65 and 2,568.59

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Solution

The fourth proportional to 10,359.78, 15,539.65 and 2,568.59 is: 3,852.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,359.78 : 15,539.65 = 2,568.59 : x
  2. Step 2: Convert to fraction form
    10,359.78/15,539.65 = 2,568.59/x
  3. Step 3: Cross multiply
    10,359.78x = 15,539.65 × 2,568.59
  4. Step 4: Simplify right side
    10,359.78x = 39,914,989.59
  5. Step 5: Solve for x
    x = 39,914,989.59/10,359.78
  6. Step 6: Final answer
    x = 3,852.88

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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.