Home / 12,208.45-18,296.71-6,660.30

Finding the Fourth Proportional to 12,208.45, 18,296.71 and 6,660.30

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Solution

The fourth proportional to 12,208.45, 18,296.71 and 6,660.30 is: 9,981.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.45 : 18,296.71 = 6,660.30 : x
  2. Step 2: Convert to fraction form
    12,208.45/18,296.71 = 6,660.30/x
  3. Step 3: Cross multiply
    12,208.45x = 18,296.71 × 6,660.30
  4. Step 4: Simplify right side
    12,208.45x = 121,861,577.61
  5. Step 5: Solve for x
    x = 121,861,577.61/12,208.45
  6. Step 6: Final answer
    x = 9,981.74

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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.