Home / 12,226.24-18,336.72-3,458.80

Finding the Fourth Proportional to 12,226.24, 18,336.72 and 3,458.80

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Solution

The fourth proportional to 12,226.24, 18,336.72 and 3,458.80 is: 5,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.24 : 18,336.72 = 3,458.80 : x
  2. Step 2: Convert to fraction form
    12,226.24/18,336.72 = 3,458.80/x
  3. Step 3: Cross multiply
    12,226.24x = 18,336.72 × 3,458.80
  4. Step 4: Simplify right side
    12,226.24x = 63,423,047.14
  5. Step 5: Solve for x
    x = 63,423,047.14/12,226.24
  6. Step 6: Final answer
    x = 5,187.45

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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.