Home / 19,118.97-28,646.10-11,707.95

Finding the Fourth Proportional to 19,118.97, 28,646.10 and 11,707.95

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Solution

The fourth proportional to 19,118.97, 28,646.10 and 11,707.95 is: 17,542.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118.97 : 28,646.10 = 11,707.95 : x
  2. Step 2: Convert to fraction form
    19,118.97/28,646.10 = 11,707.95/x
  3. Step 3: Cross multiply
    19,118.97x = 28,646.10 × 11,707.95
  4. Step 4: Simplify right side
    19,118.97x = 335,387,213.92
  5. Step 5: Solve for x
    x = 335,387,213.92/19,118.97
  6. Step 6: Final answer
    x = 17,542.12

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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.