Home / 15,183.59-20,954.32-8,470.23

Finding the Fourth Proportional to 15,183.59, 20,954.32 and 8,470.23

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Solution

The fourth proportional to 15,183.59, 20,954.32 and 8,470.23 is: 11,689.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,183.59 : 20,954.32 = 8,470.23 : x
  2. Step 2: Convert to fraction form
    15,183.59/20,954.32 = 8,470.23/x
  3. Step 3: Cross multiply
    15,183.59x = 20,954.32 × 8,470.23
  4. Step 4: Simplify right side
    15,183.59x = 177,487,828.95
  5. Step 5: Solve for x
    x = 177,487,828.95/15,183.59
  6. Step 6: Final answer
    x = 11,689.45

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Double scale
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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.