Home / 11,947.88-16,440.82-10,830.08

Finding the Fourth Proportional to 11,947.88, 16,440.82 and 10,830.08

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Solution

The fourth proportional to 11,947.88, 16,440.82 and 10,830.08 is: 14,902.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.88 : 16,440.82 = 10,830.08 : x
  2. Step 2: Convert to fraction form
    11,947.88/16,440.82 = 10,830.08/x
  3. Step 3: Cross multiply
    11,947.88x = 16,440.82 × 10,830.08
  4. Step 4: Simplify right side
    11,947.88x = 178,055,395.87
  5. Step 5: Solve for x
    x = 178,055,395.87/11,947.88
  6. Step 6: Final answer
    x = 14,902.68

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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.