Home / 12,306.48-18,470.70-5,736.36

Finding the Fourth Proportional to 12,306.48, 18,470.70 and 5,736.36

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Solution

The fourth proportional to 12,306.48, 18,470.70 and 5,736.36 is: 8,609.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306.48 : 18,470.70 = 5,736.36 : x
  2. Step 2: Convert to fraction form
    12,306.48/18,470.70 = 5,736.36/x
  3. Step 3: Cross multiply
    12,306.48x = 18,470.70 × 5,736.36
  4. Step 4: Simplify right side
    12,306.48x = 105,954,584.65
  5. Step 5: Solve for x
    x = 105,954,584.65/12,306.48
  6. Step 6: Final answer
    x = 8,609.66

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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.