Home / 15,168.20-22,703.70-11,863.40

Finding the Fourth Proportional to 15,168.20, 22,703.70 and 11,863.40

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Solution

The fourth proportional to 15,168.20, 22,703.70 and 11,863.40 is: 17,757.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,168.20 : 22,703.70 = 11,863.40 : x
  2. Step 2: Convert to fraction form
    15,168.20/22,703.70 = 11,863.40/x
  3. Step 3: Cross multiply
    15,168.20x = 22,703.70 × 11,863.40
  4. Step 4: Simplify right side
    15,168.20x = 269,343,074.58
  5. Step 5: Solve for x
    x = 269,343,074.58/15,168.20
  6. Step 6: Final answer
    x = 17,757.09

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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.