Home / 12,910.42-19,365.63-4,151.49

Finding the Fourth Proportional to 12,910.42, 19,365.63 and 4,151.49

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Solution

The fourth proportional to 12,910.42, 19,365.63 and 4,151.49 is: 6,227.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.42 : 19,365.63 = 4,151.49 : x
  2. Step 2: Convert to fraction form
    12,910.42/19,365.63 = 4,151.49/x
  3. Step 3: Cross multiply
    12,910.42x = 19,365.63 × 4,151.49
  4. Step 4: Simplify right side
    12,910.42x = 80,396,154.45
  5. Step 5: Solve for x
    x = 80,396,154.45/12,910.42
  6. Step 6: Final answer
    x = 6,227.23

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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.