Home / 12,178.55-16,817.76-8,963.66

Finding the Fourth Proportional to 12,178.55, 16,817.76 and 8,963.66

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Solution

The fourth proportional to 12,178.55, 16,817.76 and 8,963.66 is: 12,378.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.55 : 16,817.76 = 8,963.66 : x
  2. Step 2: Convert to fraction form
    12,178.55/16,817.76 = 8,963.66/x
  3. Step 3: Cross multiply
    12,178.55x = 16,817.76 × 8,963.66
  4. Step 4: Simplify right side
    12,178.55x = 150,748,724.65
  5. Step 5: Solve for x
    x = 150,748,724.65/12,178.55
  6. Step 6: Final answer
    x = 12,378.21

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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.