Home / 8,912.24-12,296.88-6,787.28

Finding the Fourth Proportional to 8,912.24, 12,296.88 and 6,787.28

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Solution

The fourth proportional to 8,912.24, 12,296.88 and 6,787.28 is: 9,364.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.24 : 12,296.88 = 6,787.28 : x
  2. Step 2: Convert to fraction form
    8,912.24/12,296.88 = 6,787.28/x
  3. Step 3: Cross multiply
    8,912.24x = 12,296.88 × 6,787.28
  4. Step 4: Simplify right side
    8,912.24x = 83,462,367.69
  5. Step 5: Solve for x
    x = 83,462,367.69/8,912.24
  6. Step 6: Final answer
    x = 9,364.91

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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.