Home / 9,414.31-12,991.75-5,222.56

Finding the Fourth Proportional to 9,414.31, 12,991.75 and 5,222.56

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Solution

The fourth proportional to 9,414.31, 12,991.75 and 5,222.56 is: 7,207.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,414.31 : 12,991.75 = 5,222.56 : x
  2. Step 2: Convert to fraction form
    9,414.31/12,991.75 = 5,222.56/x
  3. Step 3: Cross multiply
    9,414.31x = 12,991.75 × 5,222.56
  4. Step 4: Simplify right side
    9,414.31x = 67,850,102.81
  5. Step 5: Solve for x
    x = 67,850,102.81/9,414.31
  6. Step 6: Final answer
    x = 7,207.13

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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.