Home / 6,914.28-9,479.57-6,789.74

Finding the Fourth Proportional to 6,914.28, 9,479.57 and 6,789.74

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Solution

The fourth proportional to 6,914.28, 9,479.57 and 6,789.74 is: 9,308.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,914.28 : 9,479.57 = 6,789.74 : x
  2. Step 2: Convert to fraction form
    6,914.28/9,479.57 = 6,789.74/x
  3. Step 3: Cross multiply
    6,914.28x = 9,479.57 × 6,789.74
  4. Step 4: Simplify right side
    6,914.28x = 64,363,815.61
  5. Step 5: Solve for x
    x = 64,363,815.61/6,914.28
  6. Step 6: Final answer
    x = 9,308.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.