Home / 14,091.88-21,130.26-13,486

Finding the Fourth Proportional to 14,091.88, 21,130.26 and 13,486

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Solution

The fourth proportional to 14,091.88, 21,130.26 and 13,486 is: 20,221.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,091.88 : 21,130.26 = 13,486 : x
  2. Step 2: Convert to fraction form
    14,091.88/21,130.26 = 13,486/x
  3. Step 3: Cross multiply
    14,091.88x = 21,130.26 × 13,486
  4. Step 4: Simplify right side
    14,091.88x = 284,962,686.36
  5. Step 5: Solve for x
    x = 284,962,686.36/14,091.88
  6. Step 6: Final answer
    x = 20,221.77

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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.