Home / 15,180.09-20,948.64-8,466.15

Finding the Fourth Proportional to 15,180.09, 20,948.64 and 8,466.15

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Solution

The fourth proportional to 15,180.09, 20,948.64 and 8,466.15 is: 11,683.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,180.09 : 20,948.64 = 8,466.15 : x
  2. Step 2: Convert to fraction form
    15,180.09/20,948.64 = 8,466.15/x
  3. Step 3: Cross multiply
    15,180.09x = 20,948.64 × 8,466.15
  4. Step 4: Simplify right side
    15,180.09x = 177,354,328.54
  5. Step 5: Solve for x
    x = 177,354,328.54/15,180.09
  6. Step 6: Final answer
    x = 11,683.35

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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.