Home / 12,849.02-19,241.40-8,154.80

Finding the Fourth Proportional to 12,849.02, 19,241.40 and 8,154.80

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Solution

The fourth proportional to 12,849.02, 19,241.40 and 8,154.80 is: 12,211.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849.02 : 19,241.40 = 8,154.80 : x
  2. Step 2: Convert to fraction form
    12,849.02/19,241.40 = 8,154.80/x
  3. Step 3: Cross multiply
    12,849.02x = 19,241.40 × 8,154.80
  4. Step 4: Simplify right side
    12,849.02x = 156,909,768.72
  5. Step 5: Solve for x
    x = 156,909,768.72/12,849.02
  6. Step 6: Final answer
    x = 12,211.81

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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.