Home / 9,286.82-12,816.48-5,309.18

Finding the Fourth Proportional to 9,286.82, 12,816.48 and 5,309.18

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Solution

The fourth proportional to 9,286.82, 12,816.48 and 5,309.18 is: 7,327.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,286.82 : 12,816.48 = 5,309.18 : x
  2. Step 2: Convert to fraction form
    9,286.82/12,816.48 = 5,309.18/x
  3. Step 3: Cross multiply
    9,286.82x = 12,816.48 × 5,309.18
  4. Step 4: Simplify right side
    9,286.82x = 68,044,999.29
  5. Step 5: Solve for x
    x = 68,044,999.29/9,286.82
  6. Step 6: Final answer
    x = 7,327.05

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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.