Home / 20,653.74-30,977.92-6,612.58

Finding the Fourth Proportional to 20,653.74, 30,977.92 and 6,612.58

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Solution

The fourth proportional to 20,653.74, 30,977.92 and 6,612.58 is: 9,918.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,653.74 : 30,977.92 = 6,612.58 : x
  2. Step 2: Convert to fraction form
    20,653.74/30,977.92 = 6,612.58/x
  3. Step 3: Cross multiply
    20,653.74x = 30,977.92 × 6,612.58
  4. Step 4: Simplify right side
    20,653.74x = 204,843,974.23
  5. Step 5: Solve for x
    x = 204,843,974.23/20,653.74
  6. Step 6: Final answer
    x = 9,918.01

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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.