Home / 14,042.12-21,013.61-13,242.83

Finding the Fourth Proportional to 14,042.12, 21,013.61 and 13,242.83

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Solution

The fourth proportional to 14,042.12, 21,013.61 and 13,242.83 is: 19,817.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.12 : 21,013.61 = 13,242.83 : x
  2. Step 2: Convert to fraction form
    14,042.12/21,013.61 = 13,242.83/x
  3. Step 3: Cross multiply
    14,042.12x = 21,013.61 × 13,242.83
  4. Step 4: Simplify right side
    14,042.12x = 278,279,493.63
  5. Step 5: Solve for x
    x = 278,279,493.63/14,042.12
  6. Step 6: Final answer
    x = 19,817.49

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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.