Home / 10,839.60-14,958-6,122.88

Finding the Fourth Proportional to 10,839.60, 14,958 and 6,122.88

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Solution

The fourth proportional to 10,839.60, 14,958 and 6,122.88 is: 8,449.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.60 : 14,958 = 6,122.88 : x
  2. Step 2: Convert to fraction form
    10,839.60/14,958 = 6,122.88/x
  3. Step 3: Cross multiply
    10,839.60x = 14,958 × 6,122.88
  4. Step 4: Simplify right side
    10,839.60x = 91,586,039.04
  5. Step 5: Solve for x
    x = 91,586,039.04/10,839.60
  6. Step 6: Final answer
    x = 8,449.21

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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.