Home / 11,618.47-17,430.42-4,121.65

Finding the Fourth Proportional to 11,618.47, 17,430.42 and 4,121.65

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Solution

The fourth proportional to 11,618.47, 17,430.42 and 4,121.65 is: 6,183.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,618.47 : 17,430.42 = 4,121.65 : x
  2. Step 2: Convert to fraction form
    11,618.47/17,430.42 = 4,121.65/x
  3. Step 3: Cross multiply
    11,618.47x = 17,430.42 × 4,121.65
  4. Step 4: Simplify right side
    11,618.47x = 71,842,127.84
  5. Step 5: Solve for x
    x = 71,842,127.84/11,618.47
  6. Step 6: Final answer
    x = 6,183.44

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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.