Home / 8,330.20-12,493.86-3,136.12

Finding the Fourth Proportional to 8,330.20, 12,493.86 and 3,136.12

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Solution

The fourth proportional to 8,330.20, 12,493.86 and 3,136.12 is: 4,703.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.20 : 12,493.86 = 3,136.12 : x
  2. Step 2: Convert to fraction form
    8,330.20/12,493.86 = 3,136.12/x
  3. Step 3: Cross multiply
    8,330.20x = 12,493.86 × 3,136.12
  4. Step 4: Simplify right side
    8,330.20x = 39,182,244.22
  5. Step 5: Solve for x
    x = 39,182,244.22/8,330.20
  6. Step 6: Final answer
    x = 4,703.64

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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.