Home / 19,786.66-29,636.84-9,908.70

Finding the Fourth Proportional to 19,786.66, 29,636.84 and 9,908.70

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Solution

The fourth proportional to 19,786.66, 29,636.84 and 9,908.70 is: 14,841.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,786.66 : 29,636.84 = 9,908.70 : x
  2. Step 2: Convert to fraction form
    19,786.66/29,636.84 = 9,908.70/x
  3. Step 3: Cross multiply
    19,786.66x = 29,636.84 × 9,908.70
  4. Step 4: Simplify right side
    19,786.66x = 293,662,556.51
  5. Step 5: Solve for x
    x = 293,662,556.51/19,786.66
  6. Step 6: Final answer
    x = 14,841.44

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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.