Home / 19,862.88-29,790.38-9,857.19

Finding the Fourth Proportional to 19,862.88, 29,790.38 and 9,857.19

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Solution

The fourth proportional to 19,862.88, 29,790.38 and 9,857.19 is: 14,783.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.88 : 29,790.38 = 9,857.19 : x
  2. Step 2: Convert to fraction form
    19,862.88/29,790.38 = 9,857.19/x
  3. Step 3: Cross multiply
    19,862.88x = 29,790.38 × 9,857.19
  4. Step 4: Simplify right side
    19,862.88x = 293,649,286.88
  5. Step 5: Solve for x
    x = 293,649,286.88/19,862.88
  6. Step 6: Final answer
    x = 14,783.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.