Home / 15,195.33-20,969.28-8,480.84

Finding the Fourth Proportional to 15,195.33, 20,969.28 and 8,480.84

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Solution

The fourth proportional to 15,195.33, 20,969.28 and 8,480.84 is: 11,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195.33 : 20,969.28 = 8,480.84 : x
  2. Step 2: Convert to fraction form
    15,195.33/20,969.28 = 8,480.84/x
  3. Step 3: Cross multiply
    15,195.33x = 20,969.28 × 8,480.84
  4. Step 4: Simplify right side
    15,195.33x = 177,837,003.75
  5. Step 5: Solve for x
    x = 177,837,003.75/15,195.33
  6. Step 6: Final answer
    x = 11,703.40

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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.