Home / 13,897.25-19,181.18-8,860.31

Finding the Fourth Proportional to 13,897.25, 19,181.18 and 8,860.31

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Solution

The fourth proportional to 13,897.25, 19,181.18 and 8,860.31 is: 12,229.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.25 : 19,181.18 = 8,860.31 : x
  2. Step 2: Convert to fraction form
    13,897.25/19,181.18 = 8,860.31/x
  3. Step 3: Cross multiply
    13,897.25x = 19,181.18 × 8,860.31
  4. Step 4: Simplify right side
    13,897.25x = 169,951,200.97
  5. Step 5: Solve for x
    x = 169,951,200.97/13,897.25
  6. Step 6: Final answer
    x = 12,229.12

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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.