Home / 15,912.22-21,968.72-10,256.71

Finding the Fourth Proportional to 15,912.22, 21,968.72 and 10,256.71

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Solution

The fourth proportional to 15,912.22, 21,968.72 and 10,256.71 is: 14,160.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912.22 : 21,968.72 = 10,256.71 : x
  2. Step 2: Convert to fraction form
    15,912.22/21,968.72 = 10,256.71/x
  3. Step 3: Cross multiply
    15,912.22x = 21,968.72 × 10,256.71
  4. Step 4: Simplify right side
    15,912.22x = 225,326,790.11
  5. Step 5: Solve for x
    x = 225,326,790.11/15,912.22
  6. Step 6: Final answer
    x = 14,160.61

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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.