Home / 15,912.19-21,956.37-9,196.52

Finding the Fourth Proportional to 15,912.19, 21,956.37 and 9,196.52

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Solution

The fourth proportional to 15,912.19, 21,956.37 and 9,196.52 is: 12,689.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912.19 : 21,956.37 = 9,196.52 : x
  2. Step 2: Convert to fraction form
    15,912.19/21,956.37 = 9,196.52/x
  3. Step 3: Cross multiply
    15,912.19x = 21,956.37 × 9,196.52
  4. Step 4: Simplify right side
    15,912.19x = 201,922,086.05
  5. Step 5: Solve for x
    x = 201,922,086.05/15,912.19
  6. Step 6: Final answer
    x = 12,689.78

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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.