Home / 15,742.82-21,726.21-8,844.54

Finding the Fourth Proportional to 15,742.82, 21,726.21 and 8,844.54

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Solution

The fourth proportional to 15,742.82, 21,726.21 and 8,844.54 is: 12,206.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,742.82 : 21,726.21 = 8,844.54 : x
  2. Step 2: Convert to fraction form
    15,742.82/21,726.21 = 8,844.54/x
  3. Step 3: Cross multiply
    15,742.82x = 21,726.21 × 8,844.54
  4. Step 4: Simplify right side
    15,742.82x = 192,158,333.39
  5. Step 5: Solve for x
    x = 192,158,333.39/15,742.82
  6. Step 6: Final answer
    x = 12,206.10

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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.