Home / 20,508.58-30,762.88-6,658.66

Finding the Fourth Proportional to 20,508.58, 30,762.88 and 6,658.66

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Solution

The fourth proportional to 20,508.58, 30,762.88 and 6,658.66 is: 9,987.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.58 : 30,762.88 = 6,658.66 : x
  2. Step 2: Convert to fraction form
    20,508.58/30,762.88 = 6,658.66/x
  3. Step 3: Cross multiply
    20,508.58x = 30,762.88 × 6,658.66
  4. Step 4: Simplify right side
    20,508.58x = 204,839,558.54
  5. Step 5: Solve for x
    x = 204,839,558.54/20,508.58
  6. Step 6: Final answer
    x = 9,987.99

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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.