Home / 18,464.40-27,690.68-5,981.42

Finding the Fourth Proportional to 18,464.40, 27,690.68 and 5,981.42

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Solution

The fourth proportional to 18,464.40, 27,690.68 and 5,981.42 is: 8,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.40 : 27,690.68 = 5,981.42 : x
  2. Step 2: Convert to fraction form
    18,464.40/27,690.68 = 5,981.42/x
  3. Step 3: Cross multiply
    18,464.40x = 27,690.68 × 5,981.42
  4. Step 4: Simplify right side
    18,464.40x = 165,629,418.81
  5. Step 5: Solve for x
    x = 165,629,418.81/18,464.40
  6. Step 6: Final answer
    x = 8,970.20

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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.