Home / 19,821.96-27,345.06-11,863.44

Finding the Fourth Proportional to 19,821.96, 27,345.06 and 11,863.44

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Solution

The fourth proportional to 19,821.96, 27,345.06 and 11,863.44 is: 16,366.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,821.96 : 27,345.06 = 11,863.44 : x
  2. Step 2: Convert to fraction form
    19,821.96/27,345.06 = 11,863.44/x
  3. Step 3: Cross multiply
    19,821.96x = 27,345.06 × 11,863.44
  4. Step 4: Simplify right side
    19,821.96x = 324,406,478.61
  5. Step 5: Solve for x
    x = 324,406,478.61/19,821.96
  6. Step 6: Final answer
    x = 16,366.01

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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.