Home / 7,968.40-10,996.11-4,431.53

Finding the Fourth Proportional to 7,968.40, 10,996.11 and 4,431.53

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Solution

The fourth proportional to 7,968.40, 10,996.11 and 4,431.53 is: 6,115.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,968.40 : 10,996.11 = 4,431.53 : x
  2. Step 2: Convert to fraction form
    7,968.40/10,996.11 = 4,431.53/x
  3. Step 3: Cross multiply
    7,968.40x = 10,996.11 × 4,431.53
  4. Step 4: Simplify right side
    7,968.40x = 48,729,618.84
  5. Step 5: Solve for x
    x = 48,729,618.84/7,968.40
  6. Step 6: Final answer
    x = 6,115.36

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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.