Home / 10,253.20-15,367.47-4,327.78

Finding the Fourth Proportional to 10,253.20, 15,367.47 and 4,327.78

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Solution

The fourth proportional to 10,253.20, 15,367.47 and 4,327.78 is: 6,486.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,253.20 : 15,367.47 = 4,327.78 : x
  2. Step 2: Convert to fraction form
    10,253.20/15,367.47 = 4,327.78/x
  3. Step 3: Cross multiply
    10,253.20x = 15,367.47 × 4,327.78
  4. Step 4: Simplify right side
    10,253.20x = 66,507,029.32
  5. Step 5: Solve for x
    x = 66,507,029.32/10,253.20
  6. Step 6: Final answer
    x = 6,486.47

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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.