Home / 12,634.32-18,954.54-8,943.78

Finding the Fourth Proportional to 12,634.32, 18,954.54 and 8,943.78

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Solution

The fourth proportional to 12,634.32, 18,954.54 and 8,943.78 is: 13,417.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.32 : 18,954.54 = 8,943.78 : x
  2. Step 2: Convert to fraction form
    12,634.32/18,954.54 = 8,943.78/x
  3. Step 3: Cross multiply
    12,634.32x = 18,954.54 × 8,943.78
  4. Step 4: Simplify right side
    12,634.32x = 169,525,235.76
  5. Step 5: Solve for x
    x = 169,525,235.76/12,634.32
  6. Step 6: Final answer
    x = 13,417.84

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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.