Home / 9,327.28-12,864-6,806.56

Finding the Fourth Proportional to 9,327.28, 12,864 and 6,806.56

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Solution

The fourth proportional to 9,327.28, 12,864 and 6,806.56 is: 9,387.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,327.28 : 12,864 = 6,806.56 : x
  2. Step 2: Convert to fraction form
    9,327.28/12,864 = 6,806.56/x
  3. Step 3: Cross multiply
    9,327.28x = 12,864 × 6,806.56
  4. Step 4: Simplify right side
    9,327.28x = 87,559,587.84
  5. Step 5: Solve for x
    x = 87,559,587.84/9,327.28
  6. Step 6: Final answer
    x = 9,387.47

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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.