Home / 15,828.33-21,843.46-9,112.87

Finding the Fourth Proportional to 15,828.33, 21,843.46 and 9,112.87

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Solution

The fourth proportional to 15,828.33, 21,843.46 and 9,112.87 is: 12,575.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,828.33 : 21,843.46 = 9,112.87 : x
  2. Step 2: Convert to fraction form
    15,828.33/21,843.46 = 9,112.87/x
  3. Step 3: Cross multiply
    15,828.33x = 21,843.46 × 9,112.87
  4. Step 4: Simplify right side
    15,828.33x = 199,056,598.77
  5. Step 5: Solve for x
    x = 199,056,598.77/15,828.33
  6. Step 6: Final answer
    x = 12,575.97

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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.