Home / 12,366.88-18,550.80-3,133.12

Finding the Fourth Proportional to 12,366.88, 18,550.80 and 3,133.12

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Solution

The fourth proportional to 12,366.88, 18,550.80 and 3,133.12 is: 4,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366.88 : 18,550.80 = 3,133.12 : x
  2. Step 2: Convert to fraction form
    12,366.88/18,550.80 = 3,133.12/x
  3. Step 3: Cross multiply
    12,366.88x = 18,550.80 × 3,133.12
  4. Step 4: Simplify right side
    12,366.88x = 58,121,882.50
  5. Step 5: Solve for x
    x = 58,121,882.50/12,366.88
  6. Step 6: Final answer
    x = 4,699.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.