Home / 12,201.08-18,287.67-5,542.65

Finding the Fourth Proportional to 12,201.08, 18,287.67 and 5,542.65

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Solution

The fourth proportional to 12,201.08, 18,287.67 and 5,542.65 is: 8,307.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,201.08 : 18,287.67 = 5,542.65 : x
  2. Step 2: Convert to fraction form
    12,201.08/18,287.67 = 5,542.65/x
  3. Step 3: Cross multiply
    12,201.08x = 18,287.67 × 5,542.65
  4. Step 4: Simplify right side
    12,201.08x = 101,362,154.13
  5. Step 5: Solve for x
    x = 101,362,154.13/12,201.08
  6. Step 6: Final answer
    x = 8,307.64

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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.