Home / 13,207.73-18,226.60-7,239.65

Finding the Fourth Proportional to 13,207.73, 18,226.60 and 7,239.65

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Solution

The fourth proportional to 13,207.73, 18,226.60 and 7,239.65 is: 9,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.73 : 18,226.60 = 7,239.65 : x
  2. Step 2: Convert to fraction form
    13,207.73/18,226.60 = 7,239.65/x
  3. Step 3: Cross multiply
    13,207.73x = 18,226.60 × 7,239.65
  4. Step 4: Simplify right side
    13,207.73x = 131,954,204.69
  5. Step 5: Solve for x
    x = 131,954,204.69/13,207.73
  6. Step 6: Final answer
    x = 9,990.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.