Home / 12,109.44-18,141.12-6,899.52

Finding the Fourth Proportional to 12,109.44, 18,141.12 and 6,899.52

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Solution

The fourth proportional to 12,109.44, 18,141.12 and 6,899.52 is: 10,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109.44 : 18,141.12 = 6,899.52 : x
  2. Step 2: Convert to fraction form
    12,109.44/18,141.12 = 6,899.52/x
  3. Step 3: Cross multiply
    12,109.44x = 18,141.12 × 6,899.52
  4. Step 4: Simplify right side
    12,109.44x = 125,165,020.26
  5. Step 5: Solve for x
    x = 125,165,020.26/12,109.44
  6. Step 6: Final answer
    x = 10,336.15

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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.