Home / 20,508.96-30,763.52-6,658.08

Finding the Fourth Proportional to 20,508.96, 30,763.52 and 6,658.08

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Solution

The fourth proportional to 20,508.96, 30,763.52 and 6,658.08 is: 9,987.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.96 : 30,763.52 = 6,658.08 : x
  2. Step 2: Convert to fraction form
    20,508.96/30,763.52 = 6,658.08/x
  3. Step 3: Cross multiply
    20,508.96x = 30,763.52 × 6,658.08
  4. Step 4: Simplify right side
    20,508.96x = 204,825,977.24
  5. Step 5: Solve for x
    x = 204,825,977.24/20,508.96
  6. Step 6: Final answer
    x = 9,987.15

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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.