Home / 11,275.20-16,921.31-4,254.93

Finding the Fourth Proportional to 11,275.20, 16,921.31 and 4,254.93

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Solution

The fourth proportional to 11,275.20, 16,921.31 and 4,254.93 is: 6,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.20 : 16,921.31 = 4,254.93 : x
  2. Step 2: Convert to fraction form
    11,275.20/16,921.31 = 4,254.93/x
  3. Step 3: Cross multiply
    11,275.20x = 16,921.31 × 4,254.93
  4. Step 4: Simplify right side
    11,275.20x = 71,998,968.28
  5. Step 5: Solve for x
    x = 71,998,968.28/11,275.20
  6. Step 6: Final answer
    x = 6,385.60

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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.