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Finding the Fourth Proportional to 11,481, 15,839.72 and 7,504.41

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Solution

The fourth proportional to 11,481, 15,839.72 and 7,504.41 is: 10,353.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481 : 15,839.72 = 7,504.41 : x
  2. Step 2: Convert to fraction form
    11,481/15,839.72 = 7,504.41/x
  3. Step 3: Cross multiply
    11,481x = 15,839.72 × 7,504.41
  4. Step 4: Simplify right side
    11,481x = 118,867,715.64
  5. Step 5: Solve for x
    x = 118,867,715.64/11,481
  6. Step 6: Final answer
    x = 10,353.43

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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.