Home / 15,844.80-21,858.96-9,553.68

Finding the Fourth Proportional to 15,844.80, 21,858.96 and 9,553.68

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Solution

The fourth proportional to 15,844.80, 21,858.96 and 9,553.68 is: 13,179.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,844.80 : 21,858.96 = 9,553.68 : x
  2. Step 2: Convert to fraction form
    15,844.80/21,858.96 = 9,553.68/x
  3. Step 3: Cross multiply
    15,844.80x = 21,858.96 × 9,553.68
  4. Step 4: Simplify right side
    15,844.80x = 208,833,508.97
  5. Step 5: Solve for x
    x = 208,833,508.97/15,844.80
  6. Step 6: Final answer
    x = 13,179.94

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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.