Home / 12,790.20-19,164.18-5,849.40

Finding the Fourth Proportional to 12,790.20, 19,164.18 and 5,849.40

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Solution

The fourth proportional to 12,790.20, 19,164.18 and 5,849.40 is: 8,764.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.20 : 19,164.18 = 5,849.40 : x
  2. Step 2: Convert to fraction form
    12,790.20/19,164.18 = 5,849.40/x
  3. Step 3: Cross multiply
    12,790.20x = 19,164.18 × 5,849.40
  4. Step 4: Simplify right side
    12,790.20x = 112,098,954.49
  5. Step 5: Solve for x
    x = 112,098,954.49/12,790.20
  6. Step 6: Final answer
    x = 8,764.44

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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.