Home / 12,208.32-18,301.68-9,279.36

Finding the Fourth Proportional to 12,208.32, 18,301.68 and 9,279.36

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Solution

The fourth proportional to 12,208.32, 18,301.68 and 9,279.36 is: 13,910.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.32 : 18,301.68 = 9,279.36 : x
  2. Step 2: Convert to fraction form
    12,208.32/18,301.68 = 9,279.36/x
  3. Step 3: Cross multiply
    12,208.32x = 18,301.68 × 9,279.36
  4. Step 4: Simplify right side
    12,208.32x = 169,827,877.32
  5. Step 5: Solve for x
    x = 169,827,877.32/12,208.32
  6. Step 6: Final answer
    x = 13,910.83

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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.