Home / 15,184.62-20,954.80-8,470.07

Finding the Fourth Proportional to 15,184.62, 20,954.80 and 8,470.07

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Solution

The fourth proportional to 15,184.62, 20,954.80 and 8,470.07 is: 11,688.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.62 : 20,954.80 = 8,470.07 : x
  2. Step 2: Convert to fraction form
    15,184.62/20,954.80 = 8,470.07/x
  3. Step 3: Cross multiply
    15,184.62x = 20,954.80 × 8,470.07
  4. Step 4: Simplify right side
    15,184.62x = 177,488,622.84
  5. Step 5: Solve for x
    x = 177,488,622.84/15,184.62
  6. Step 6: Final answer
    x = 11,688.71

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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.