Home / 18,621.74-27,926.68-6,139.44

Finding the Fourth Proportional to 18,621.74, 27,926.68 and 6,139.44

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Solution

The fourth proportional to 18,621.74, 27,926.68 and 6,139.44 is: 9,207.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.74 : 27,926.68 = 6,139.44 : x
  2. Step 2: Convert to fraction form
    18,621.74/27,926.68 = 6,139.44/x
  3. Step 3: Cross multiply
    18,621.74x = 27,926.68 × 6,139.44
  4. Step 4: Simplify right side
    18,621.74x = 171,454,036.63
  5. Step 5: Solve for x
    x = 171,454,036.63/18,621.74
  6. Step 6: Final answer
    x = 9,207.20

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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.