Home / 12,748.60-19,101.30-8,363.80

Finding the Fourth Proportional to 12,748.60, 19,101.30 and 8,363.80

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Solution

The fourth proportional to 12,748.60, 19,101.30 and 8,363.80 is: 12,531.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.60 : 19,101.30 = 8,363.80 : x
  2. Step 2: Convert to fraction form
    12,748.60/19,101.30 = 8,363.80/x
  3. Step 3: Cross multiply
    12,748.60x = 19,101.30 × 8,363.80
  4. Step 4: Simplify right side
    12,748.60x = 159,759,452.94
  5. Step 5: Solve for x
    x = 159,759,452.94/12,748.60
  6. Step 6: Final answer
    x = 12,531.53

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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.