Home / 15,196.10-20,970.63-8,481.72

Finding the Fourth Proportional to 15,196.10, 20,970.63 and 8,481.72

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Solution

The fourth proportional to 15,196.10, 20,970.63 and 8,481.72 is: 11,704.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196.10 : 20,970.63 = 8,481.72 : x
  2. Step 2: Convert to fraction form
    15,196.10/20,970.63 = 8,481.72/x
  3. Step 3: Cross multiply
    15,196.10x = 20,970.63 × 8,481.72
  4. Step 4: Simplify right side
    15,196.10x = 177,867,066.67
  5. Step 5: Solve for x
    x = 177,867,066.67/15,196.10
  6. Step 6: Final answer
    x = 11,704.78

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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.