Home / 18,518.20-27,776.46-5,370.28

Finding the Fourth Proportional to 18,518.20, 27,776.46 and 5,370.28

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Solution

The fourth proportional to 18,518.20, 27,776.46 and 5,370.28 is: 8,055.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.20 : 27,776.46 = 5,370.28 : x
  2. Step 2: Convert to fraction form
    18,518.20/27,776.46 = 5,370.28/x
  3. Step 3: Cross multiply
    18,518.20x = 27,776.46 × 5,370.28
  4. Step 4: Simplify right side
    18,518.20x = 149,167,367.61
  5. Step 5: Solve for x
    x = 149,167,367.61/18,518.20
  6. Step 6: Final answer
    x = 8,055.18

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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.