Home / 11,769.92-16,242.56-6,392.39

Finding the Fourth Proportional to 11,769.92, 16,242.56 and 6,392.39

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Solution

The fourth proportional to 11,769.92, 16,242.56 and 6,392.39 is: 8,821.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,769.92 : 16,242.56 = 6,392.39 : x
  2. Step 2: Convert to fraction form
    11,769.92/16,242.56 = 6,392.39/x
  3. Step 3: Cross multiply
    11,769.92x = 16,242.56 × 6,392.39
  4. Step 4: Simplify right side
    11,769.92x = 103,828,688.92
  5. Step 5: Solve for x
    x = 103,828,688.92/11,769.92
  6. Step 6: Final answer
    x = 8,821.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.