Home / 15,776.28-23,680.80-11,620.96

Finding the Fourth Proportional to 15,776.28, 23,680.80 and 11,620.96

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Solution

The fourth proportional to 15,776.28, 23,680.80 and 11,620.96 is: 17,443.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,776.28 : 23,680.80 = 11,620.96 : x
  2. Step 2: Convert to fraction form
    15,776.28/23,680.80 = 11,620.96/x
  3. Step 3: Cross multiply
    15,776.28x = 23,680.80 × 11,620.96
  4. Step 4: Simplify right side
    15,776.28x = 275,193,629.57
  5. Step 5: Solve for x
    x = 275,193,629.57/15,776.28
  6. Step 6: Final answer
    x = 17,443.51

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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.