Home / 11,077.28-15,268.42-7,842.95

Finding the Fourth Proportional to 11,077.28, 15,268.42 and 7,842.95

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Solution

The fourth proportional to 11,077.28, 15,268.42 and 7,842.95 is: 10,810.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,077.28 : 15,268.42 = 7,842.95 : x
  2. Step 2: Convert to fraction form
    11,077.28/15,268.42 = 7,842.95/x
  3. Step 3: Cross multiply
    11,077.28x = 15,268.42 × 7,842.95
  4. Step 4: Simplify right side
    11,077.28x = 119,749,473.20
  5. Step 5: Solve for x
    x = 119,749,473.20/11,077.28
  6. Step 6: Final answer
    x = 10,810.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.