Home / 8,917.94-12,306.65-4,939.28

Finding the Fourth Proportional to 8,917.94, 12,306.65 and 4,939.28

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Solution

The fourth proportional to 8,917.94, 12,306.65 and 4,939.28 is: 6,816.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.94 : 12,306.65 = 4,939.28 : x
  2. Step 2: Convert to fraction form
    8,917.94/12,306.65 = 4,939.28/x
  3. Step 3: Cross multiply
    8,917.94x = 12,306.65 × 4,939.28
  4. Step 4: Simplify right side
    8,917.94x = 60,785,903.98
  5. Step 5: Solve for x
    x = 60,785,903.98/8,917.94
  6. Step 6: Final answer
    x = 6,816.14

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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.