Home / 7,938.84-11,901.20-3,011.94

Finding the Fourth Proportional to 7,938.84, 11,901.20 and 3,011.94

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Solution

The fourth proportional to 7,938.84, 11,901.20 and 3,011.94 is: 4,515.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.84 : 11,901.20 = 3,011.94 : x
  2. Step 2: Convert to fraction form
    7,938.84/11,901.20 = 3,011.94/x
  3. Step 3: Cross multiply
    7,938.84x = 11,901.20 × 3,011.94
  4. Step 4: Simplify right side
    7,938.84x = 35,845,685.27
  5. Step 5: Solve for x
    x = 35,845,685.27/7,938.84
  6. Step 6: Final answer
    x = 4,515.23

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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.