Home / 10,836.90-14,954.85-6,121.17

Finding the Fourth Proportional to 10,836.90, 14,954.85 and 6,121.17

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Solution

The fourth proportional to 10,836.90, 14,954.85 and 6,121.17 is: 8,447.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,836.90 : 14,954.85 = 6,121.17 : x
  2. Step 2: Convert to fraction form
    10,836.90/14,954.85 = 6,121.17/x
  3. Step 3: Cross multiply
    10,836.90x = 14,954.85 × 6,121.17
  4. Step 4: Simplify right side
    10,836.90x = 91,541,179.17
  5. Step 5: Solve for x
    x = 91,541,179.17/10,836.90
  6. Step 6: Final answer
    x = 8,447.17

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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.