Home / 12,154.17-16,772.66-6,776.55

Finding the Fourth Proportional to 12,154.17, 16,772.66 and 6,776.55

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Solution

The fourth proportional to 12,154.17, 16,772.66 and 6,776.55 is: 9,351.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154.17 : 16,772.66 = 6,776.55 : x
  2. Step 2: Convert to fraction form
    12,154.17/16,772.66 = 6,776.55/x
  3. Step 3: Cross multiply
    12,154.17x = 16,772.66 × 6,776.55
  4. Step 4: Simplify right side
    12,154.17x = 113,660,769.12
  5. Step 5: Solve for x
    x = 113,660,769.12/12,154.17
  6. Step 6: Final answer
    x = 9,351.59

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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.