Home / 16,778.39-25,166.15-7,891.64

Finding the Fourth Proportional to 16,778.39, 25,166.15 and 7,891.64

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Solution

The fourth proportional to 16,778.39, 25,166.15 and 7,891.64 is: 11,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,778.39 : 25,166.15 = 7,891.64 : x
  2. Step 2: Convert to fraction form
    16,778.39/25,166.15 = 7,891.64/x
  3. Step 3: Cross multiply
    16,778.39x = 25,166.15 × 7,891.64
  4. Step 4: Simplify right side
    16,778.39x = 198,602,030.70
  5. Step 5: Solve for x
    x = 198,602,030.70/16,778.39
  6. Step 6: Final answer
    x = 11,836.77

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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.