Home / 9,333.28-12,872.28-6,812.56

Finding the Fourth Proportional to 9,333.28, 12,872.28 and 6,812.56

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Solution

The fourth proportional to 9,333.28, 12,872.28 and 6,812.56 is: 9,395.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,333.28 : 12,872.28 = 6,812.56 : x
  2. Step 2: Convert to fraction form
    9,333.28/12,872.28 = 6,812.56/x
  3. Step 3: Cross multiply
    9,333.28x = 12,872.28 × 6,812.56
  4. Step 4: Simplify right side
    9,333.28x = 87,693,179.84
  5. Step 5: Solve for x
    x = 87,693,179.84/9,333.28
  6. Step 6: Final answer
    x = 9,395.75

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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.