Home / 12,187.23-18,251.63-6,626.78

Finding the Fourth Proportional to 12,187.23, 18,251.63 and 6,626.78

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Solution

The fourth proportional to 12,187.23, 18,251.63 and 6,626.78 is: 9,924.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.23 : 18,251.63 = 6,626.78 : x
  2. Step 2: Convert to fraction form
    12,187.23/18,251.63 = 6,626.78/x
  3. Step 3: Cross multiply
    12,187.23x = 18,251.63 × 6,626.78
  4. Step 4: Simplify right side
    12,187.23x = 120,949,549.15
  5. Step 5: Solve for x
    x = 120,949,549.15/12,187.23
  6. Step 6: Final answer
    x = 9,924.29

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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.