Home / 15,078.80-22,626.84-11,121.68

Finding the Fourth Proportional to 15,078.80, 22,626.84 and 11,121.68

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Solution

The fourth proportional to 15,078.80, 22,626.84 and 11,121.68 is: 16,688.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,078.80 : 22,626.84 = 11,121.68 : x
  2. Step 2: Convert to fraction form
    15,078.80/22,626.84 = 11,121.68/x
  3. Step 3: Cross multiply
    15,078.80x = 22,626.84 × 11,121.68
  4. Step 4: Simplify right side
    15,078.80x = 251,648,473.89
  5. Step 5: Solve for x
    x = 251,648,473.89/15,078.80
  6. Step 6: Final answer
    x = 16,688.89

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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.