Home / 15,184.60-20,954.77-8,470.66

Finding the Fourth Proportional to 15,184.60, 20,954.77 and 8,470.66

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Solution

The fourth proportional to 15,184.60, 20,954.77 and 8,470.66 is: 11,689.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.60 : 20,954.77 = 8,470.66 : x
  2. Step 2: Convert to fraction form
    15,184.60/20,954.77 = 8,470.66/x
  3. Step 3: Cross multiply
    15,184.60x = 20,954.77 × 8,470.66
  4. Step 4: Simplify right side
    15,184.60x = 177,500,732.05
  5. Step 5: Solve for x
    x = 177,500,732.05/15,184.60
  6. Step 6: Final answer
    x = 11,689.52

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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.