Home / 13,039.20-19,514.88-11,960.16

Finding the Fourth Proportional to 13,039.20, 19,514.88 and 11,960.16

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Solution

The fourth proportional to 13,039.20, 19,514.88 and 11,960.16 is: 17,899.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.20 : 19,514.88 = 11,960.16 : x
  2. Step 2: Convert to fraction form
    13,039.20/19,514.88 = 11,960.16/x
  3. Step 3: Cross multiply
    13,039.20x = 19,514.88 × 11,960.16
  4. Step 4: Simplify right side
    13,039.20x = 233,401,087.18
  5. Step 5: Solve for x
    x = 233,401,087.18/13,039.20
  6. Step 6: Final answer
    x = 17,899.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.