Home / 10,286.19-15,450.24-6,781.22

Finding the Fourth Proportional to 10,286.19, 15,450.24 and 6,781.22

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Solution

The fourth proportional to 10,286.19, 15,450.24 and 6,781.22 is: 10,185.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.19 : 15,450.24 = 6,781.22 : x
  2. Step 2: Convert to fraction form
    10,286.19/15,450.24 = 6,781.22/x
  3. Step 3: Cross multiply
    10,286.19x = 15,450.24 × 6,781.22
  4. Step 4: Simplify right side
    10,286.19x = 104,771,482.61
  5. Step 5: Solve for x
    x = 104,771,482.61/10,286.19
  6. Step 6: Final answer
    x = 10,185.65

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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.