Home / 18,570.66-27,853.01-5,419.95

Finding the Fourth Proportional to 18,570.66, 27,853.01 and 5,419.95

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Solution

The fourth proportional to 18,570.66, 27,853.01 and 5,419.95 is: 8,129.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.66 : 27,853.01 = 5,419.95 : x
  2. Step 2: Convert to fraction form
    18,570.66/27,853.01 = 5,419.95/x
  3. Step 3: Cross multiply
    18,570.66x = 27,853.01 × 5,419.95
  4. Step 4: Simplify right side
    18,570.66x = 150,961,894.45
  5. Step 5: Solve for x
    x = 150,961,894.45/18,570.66
  6. Step 6: Final answer
    x = 8,129.05

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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.