Home / 12,154.11-16,772.57-6,776.49

Finding the Fourth Proportional to 12,154.11, 16,772.57 and 6,776.49

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Solution

The fourth proportional to 12,154.11, 16,772.57 and 6,776.49 is: 9,351.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154.11 : 16,772.57 = 6,776.49 : x
  2. Step 2: Convert to fraction form
    12,154.11/16,772.57 = 6,776.49/x
  3. Step 3: Cross multiply
    12,154.11x = 16,772.57 × 6,776.49
  4. Step 4: Simplify right side
    12,154.11x = 113,659,119.00
  5. Step 5: Solve for x
    x = 113,659,119.00/12,154.11
  6. Step 6: Final answer
    x = 9,351.50

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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.