Home / 15,152.60-20,918.13-11,741.96

Finding the Fourth Proportional to 15,152.60, 20,918.13 and 11,741.96

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Solution

The fourth proportional to 15,152.60, 20,918.13 and 11,741.96 is: 16,209.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,152.60 : 20,918.13 = 11,741.96 : x
  2. Step 2: Convert to fraction form
    15,152.60/20,918.13 = 11,741.96/x
  3. Step 3: Cross multiply
    15,152.60x = 20,918.13 × 11,741.96
  4. Step 4: Simplify right side
    15,152.60x = 245,619,845.73
  5. Step 5: Solve for x
    x = 245,619,845.73/15,152.60
  6. Step 6: Final answer
    x = 16,209.75

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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.