Home / 11,319.42-15,618.33-6,843.09

Finding the Fourth Proportional to 11,319.42, 15,618.33 and 6,843.09

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Solution

The fourth proportional to 11,319.42, 15,618.33 and 6,843.09 is: 9,441.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.42 : 15,618.33 = 6,843.09 : x
  2. Step 2: Convert to fraction form
    11,319.42/15,618.33 = 6,843.09/x
  3. Step 3: Cross multiply
    11,319.42x = 15,618.33 × 6,843.09
  4. Step 4: Simplify right side
    11,319.42x = 106,877,637.84
  5. Step 5: Solve for x
    x = 106,877,637.84/11,319.42
  6. Step 6: Final answer
    x = 9,441.97

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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.