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Finding the Fourth Proportional to 8,402.69, 12,600.18 and 4,015.33

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Solution

The fourth proportional to 8,402.69, 12,600.18 and 4,015.33 is: 6,021.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,402.69 : 12,600.18 = 4,015.33 : x
  2. Step 2: Convert to fraction form
    8,402.69/12,600.18 = 4,015.33/x
  3. Step 3: Cross multiply
    8,402.69x = 12,600.18 × 4,015.33
  4. Step 4: Simplify right side
    8,402.69x = 50,593,849.26
  5. Step 5: Solve for x
    x = 50,593,849.26/8,402.69
  6. Step 6: Final answer
    x = 6,021.15

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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.