Home / 11,170.70-15,376.96-9,657.58

Finding the Fourth Proportional to 11,170.70, 15,376.96 and 9,657.58

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Solution

The fourth proportional to 11,170.70, 15,376.96 and 9,657.58 is: 13,294.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,170.70 : 15,376.96 = 9,657.58 : x
  2. Step 2: Convert to fraction form
    11,170.70/15,376.96 = 9,657.58/x
  3. Step 3: Cross multiply
    11,170.70x = 15,376.96 × 9,657.58
  4. Step 4: Simplify right side
    11,170.70x = 148,504,221.36
  5. Step 5: Solve for x
    x = 148,504,221.36/11,170.70
  6. Step 6: Final answer
    x = 13,294.08

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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.