Home / 11,440.28-15,787.22-6,727.70

Finding the Fourth Proportional to 11,440.28, 15,787.22 and 6,727.70

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Solution

The fourth proportional to 11,440.28, 15,787.22 and 6,727.70 is: 9,284.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.28 : 15,787.22 = 6,727.70 : x
  2. Step 2: Convert to fraction form
    11,440.28/15,787.22 = 6,727.70/x
  3. Step 3: Cross multiply
    11,440.28x = 15,787.22 × 6,727.70
  4. Step 4: Simplify right side
    11,440.28x = 106,211,679.99
  5. Step 5: Solve for x
    x = 106,211,679.99/11,440.28
  6. Step 6: Final answer
    x = 9,284.01

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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.