Home / 11,278.50-16,922.61-6,661.50

Finding the Fourth Proportional to 11,278.50, 16,922.61 and 6,661.50

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Solution

The fourth proportional to 11,278.50, 16,922.61 and 6,661.50 is: 9,995.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.50 : 16,922.61 = 6,661.50 : x
  2. Step 2: Convert to fraction form
    11,278.50/16,922.61 = 6,661.50/x
  3. Step 3: Cross multiply
    11,278.50x = 16,922.61 × 6,661.50
  4. Step 4: Simplify right side
    11,278.50x = 112,729,966.52
  5. Step 5: Solve for x
    x = 112,729,966.52/11,278.50
  6. Step 6: Final answer
    x = 9,995.12

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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.