Home / 18,281.49-27,418.17-5,135.19

Finding the Fourth Proportional to 18,281.49, 27,418.17 and 5,135.19

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Solution

The fourth proportional to 18,281.49, 27,418.17 and 5,135.19 is: 7,701.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.49 : 27,418.17 = 5,135.19 : x
  2. Step 2: Convert to fraction form
    18,281.49/27,418.17 = 5,135.19/x
  3. Step 3: Cross multiply
    18,281.49x = 27,418.17 × 5,135.19
  4. Step 4: Simplify right side
    18,281.49x = 140,797,512.40
  5. Step 5: Solve for x
    x = 140,797,512.40/18,281.49
  6. Step 6: Final answer
    x = 7,701.64

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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.