Home / 15,180.34-20,949.05-8,466.55

Finding the Fourth Proportional to 15,180.34, 20,949.05 and 8,466.55

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Solution

The fourth proportional to 15,180.34, 20,949.05 and 8,466.55 is: 11,683.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,180.34 : 20,949.05 = 8,466.55 : x
  2. Step 2: Convert to fraction form
    15,180.34/20,949.05 = 8,466.55/x
  3. Step 3: Cross multiply
    15,180.34x = 20,949.05 × 8,466.55
  4. Step 4: Simplify right side
    15,180.34x = 177,366,179.28
  5. Step 5: Solve for x
    x = 177,366,179.28/15,180.34
  6. Step 6: Final answer
    x = 11,683.94

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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.