Home / 12,849.12-19,256.67-8,154.36

Finding the Fourth Proportional to 12,849.12, 19,256.67 and 8,154.36

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Solution

The fourth proportional to 12,849.12, 19,256.67 and 8,154.36 is: 12,220.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849.12 : 19,256.67 = 8,154.36 : x
  2. Step 2: Convert to fraction form
    12,849.12/19,256.67 = 8,154.36/x
  3. Step 3: Cross multiply
    12,849.12x = 19,256.67 × 8,154.36
  4. Step 4: Simplify right side
    12,849.12x = 157,025,819.58
  5. Step 5: Solve for x
    x = 157,025,819.58/12,849.12
  6. Step 6: Final answer
    x = 12,220.75

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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.