Home / 13,766.80-20,659.56-9,076.72

Finding the Fourth Proportional to 13,766.80, 20,659.56 and 9,076.72

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Solution

The fourth proportional to 13,766.80, 20,659.56 and 9,076.72 is: 13,621.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,766.80 : 20,659.56 = 9,076.72 : x
  2. Step 2: Convert to fraction form
    13,766.80/20,659.56 = 9,076.72/x
  3. Step 3: Cross multiply
    13,766.80x = 20,659.56 × 9,076.72
  4. Step 4: Simplify right side
    13,766.80x = 187,521,041.44
  5. Step 5: Solve for x
    x = 187,521,041.44/13,766.80
  6. Step 6: Final answer
    x = 13,621.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.