Home / 19,815.96-27,345.79-10,863.46

Finding the Fourth Proportional to 19,815.96, 27,345.79 and 10,863.46

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Solution

The fourth proportional to 19,815.96, 27,345.79 and 10,863.46 is: 14,991.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.96 : 27,345.79 = 10,863.46 : x
  2. Step 2: Convert to fraction form
    19,815.96/27,345.79 = 10,863.46/x
  3. Step 3: Cross multiply
    19,815.96x = 27,345.79 × 10,863.46
  4. Step 4: Simplify right side
    19,815.96x = 297,069,943.59
  5. Step 5: Solve for x
    x = 297,069,943.59/19,815.96
  6. Step 6: Final answer
    x = 14,991.45

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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.