Home / 15,180.21-20,949.18-8,466.12

Finding the Fourth Proportional to 15,180.21, 20,949.18 and 8,466.12

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Solution

The fourth proportional to 15,180.21, 20,949.18 and 8,466.12 is: 11,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,180.21 : 20,949.18 = 8,466.12 : x
  2. Step 2: Convert to fraction form
    15,180.21/20,949.18 = 8,466.12/x
  3. Step 3: Cross multiply
    15,180.21x = 20,949.18 × 8,466.12
  4. Step 4: Simplify right side
    15,180.21x = 177,358,287.66
  5. Step 5: Solve for x
    x = 177,358,287.66/15,180.21
  6. Step 6: Final answer
    x = 11,683.52

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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.