Home / 12,159.23-18,187.01-7,467.71

Finding the Fourth Proportional to 12,159.23, 18,187.01 and 7,467.71

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Solution

The fourth proportional to 12,159.23, 18,187.01 and 7,467.71 is: 11,169.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.23 : 18,187.01 = 7,467.71 : x
  2. Step 2: Convert to fraction form
    12,159.23/18,187.01 = 7,467.71/x
  3. Step 3: Cross multiply
    12,159.23x = 18,187.01 × 7,467.71
  4. Step 4: Simplify right side
    12,159.23x = 135,815,279.11
  5. Step 5: Solve for x
    x = 135,815,279.11/12,159.23
  6. Step 6: Final answer
    x = 11,169.73

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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.