Home / 12,147.63-16,771.01-7,963.17

Finding the Fourth Proportional to 12,147.63, 16,771.01 and 7,963.17

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Solution

The fourth proportional to 12,147.63, 16,771.01 and 7,963.17 is: 10,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,147.63 : 16,771.01 = 7,963.17 : x
  2. Step 2: Convert to fraction form
    12,147.63/16,771.01 = 7,963.17/x
  3. Step 3: Cross multiply
    12,147.63x = 16,771.01 × 7,963.17
  4. Step 4: Simplify right side
    12,147.63x = 133,550,403.70
  5. Step 5: Solve for x
    x = 133,550,403.70/12,147.63
  6. Step 6: Final answer
    x = 10,993.95

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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.