Home / 19,815.26-27,345-10,863.14

Finding the Fourth Proportional to 19,815.26, 27,345 and 10,863.14

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Solution

The fourth proportional to 19,815.26, 27,345 and 10,863.14 is: 14,991.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.26 : 27,345 = 10,863.14 : x
  2. Step 2: Convert to fraction form
    19,815.26/27,345 = 10,863.14/x
  3. Step 3: Cross multiply
    19,815.26x = 27,345 × 10,863.14
  4. Step 4: Simplify right side
    19,815.26x = 297,052,563.30
  5. Step 5: Solve for x
    x = 297,052,563.30/19,815.26
  6. Step 6: Final answer
    x = 14,991.10

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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.