Home / 11,558.60-15,954.96-6,842.88

Finding the Fourth Proportional to 11,558.60, 15,954.96 and 6,842.88

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Solution

The fourth proportional to 11,558.60, 15,954.96 and 6,842.88 is: 9,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,558.60 : 15,954.96 = 6,842.88 : x
  2. Step 2: Convert to fraction form
    11,558.60/15,954.96 = 6,842.88/x
  3. Step 3: Cross multiply
    11,558.60x = 15,954.96 × 6,842.88
  4. Step 4: Simplify right side
    11,558.60x = 109,177,876.68
  5. Step 5: Solve for x
    x = 109,177,876.68/11,558.60
  6. Step 6: Final answer
    x = 9,445.60

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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.