Home / 8,349.73-11,522.34-4,991.78

Finding the Fourth Proportional to 8,349.73, 11,522.34 and 4,991.78

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Solution

The fourth proportional to 8,349.73, 11,522.34 and 4,991.78 is: 6,888.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.73 : 11,522.34 = 4,991.78 : x
  2. Step 2: Convert to fraction form
    8,349.73/11,522.34 = 4,991.78/x
  3. Step 3: Cross multiply
    8,349.73x = 11,522.34 × 4,991.78
  4. Step 4: Simplify right side
    8,349.73x = 57,517,015.17
  5. Step 5: Solve for x
    x = 57,517,015.17/8,349.73
  6. Step 6: Final answer
    x = 6,888.49

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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.