Home / 7,947.84-11,920.02-3,266.70

Finding the Fourth Proportional to 7,947.84, 11,920.02 and 3,266.70

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Solution

The fourth proportional to 7,947.84, 11,920.02 and 3,266.70 is: 4,899.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.84 : 11,920.02 = 3,266.70 : x
  2. Step 2: Convert to fraction form
    7,947.84/11,920.02 = 3,266.70/x
  3. Step 3: Cross multiply
    7,947.84x = 11,920.02 × 3,266.70
  4. Step 4: Simplify right side
    7,947.84x = 38,939,129.33
  5. Step 5: Solve for x
    x = 38,939,129.33/7,947.84
  6. Step 6: Final answer
    x = 4,899.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.