Home / 13,152.60-19,728.90-11,512.35

Finding the Fourth Proportional to 13,152.60, 19,728.90 and 11,512.35

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Solution

The fourth proportional to 13,152.60, 19,728.90 and 11,512.35 is: 17,268.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.60 : 19,728.90 = 11,512.35 : x
  2. Step 2: Convert to fraction form
    13,152.60/19,728.90 = 11,512.35/x
  3. Step 3: Cross multiply
    13,152.60x = 19,728.90 × 11,512.35
  4. Step 4: Simplify right side
    13,152.60x = 227,126,001.92
  5. Step 5: Solve for x
    x = 227,126,001.92/13,152.60
  6. Step 6: Final answer
    x = 17,268.53

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Similar ratio
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1.5x scale

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.