Home / 12,447.87-18,674.07-4,127.95

Finding the Fourth Proportional to 12,447.87, 18,674.07 and 4,127.95

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Solution

The fourth proportional to 12,447.87, 18,674.07 and 4,127.95 is: 6,192.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.87 : 18,674.07 = 4,127.95 : x
  2. Step 2: Convert to fraction form
    12,447.87/18,674.07 = 4,127.95/x
  3. Step 3: Cross multiply
    12,447.87x = 18,674.07 × 4,127.95
  4. Step 4: Simplify right side
    12,447.87x = 77,085,627.26
  5. Step 5: Solve for x
    x = 77,085,627.26/12,447.87
  6. Step 6: Final answer
    x = 6,192.68

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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.