Home / 15,110.88-20,849.84-9,141.36

Finding the Fourth Proportional to 15,110.88, 20,849.84 and 9,141.36

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Solution

The fourth proportional to 15,110.88, 20,849.84 and 9,141.36 is: 12,613.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,110.88 : 20,849.84 = 9,141.36 : x
  2. Step 2: Convert to fraction form
    15,110.88/20,849.84 = 9,141.36/x
  3. Step 3: Cross multiply
    15,110.88x = 20,849.84 × 9,141.36
  4. Step 4: Simplify right side
    15,110.88x = 190,595,893.38
  5. Step 5: Solve for x
    x = 190,595,893.38/15,110.88
  6. Step 6: Final answer
    x = 12,613.16

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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.