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Finding the Fourth Proportional to 8,608.32, 11,842.20 and 7,541.28

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Solution

The fourth proportional to 8,608.32, 11,842.20 and 7,541.28 is: 10,374.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.32 : 11,842.20 = 7,541.28 : x
  2. Step 2: Convert to fraction form
    8,608.32/11,842.20 = 7,541.28/x
  3. Step 3: Cross multiply
    8,608.32x = 11,842.20 × 7,541.28
  4. Step 4: Simplify right side
    8,608.32x = 89,305,346.02
  5. Step 5: Solve for x
    x = 89,305,346.02/8,608.32
  6. Step 6: Final answer
    x = 10,374.31

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1.5x scale

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.