Home / 19,742.52-27,235.92-11,780.12

Finding the Fourth Proportional to 19,742.52, 27,235.92 and 11,780.12

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Solution

The fourth proportional to 19,742.52, 27,235.92 and 11,780.12 is: 16,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,742.52 : 27,235.92 = 11,780.12 : x
  2. Step 2: Convert to fraction form
    19,742.52/27,235.92 = 11,780.12/x
  3. Step 3: Cross multiply
    19,742.52x = 27,235.92 × 11,780.12
  4. Step 4: Simplify right side
    19,742.52x = 320,842,518.18
  5. Step 5: Solve for x
    x = 320,842,518.18/19,742.52
  6. Step 6: Final answer
    x = 16,251.34

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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.