Home / 11,824.31-16,317.75-7,639.85

Finding the Fourth Proportional to 11,824.31, 16,317.75 and 7,639.85

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Solution

The fourth proportional to 11,824.31, 16,317.75 and 7,639.85 is: 10,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,824.31 : 16,317.75 = 7,639.85 : x
  2. Step 2: Convert to fraction form
    11,824.31/16,317.75 = 7,639.85/x
  3. Step 3: Cross multiply
    11,824.31x = 16,317.75 × 7,639.85
  4. Step 4: Simplify right side
    11,824.31x = 124,665,231.78
  5. Step 5: Solve for x
    x = 124,665,231.78/11,824.31
  6. Step 6: Final answer
    x = 10,543.13

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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.