Home / 10,443.96-15,665.92-6,940.80

Finding the Fourth Proportional to 10,443.96, 15,665.92 and 6,940.80

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Solution

The fourth proportional to 10,443.96, 15,665.92 and 6,940.80 is: 10,411.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,443.96 : 15,665.92 = 6,940.80 : x
  2. Step 2: Convert to fraction form
    10,443.96/15,665.92 = 6,940.80/x
  3. Step 3: Cross multiply
    10,443.96x = 15,665.92 × 6,940.80
  4. Step 4: Simplify right side
    10,443.96x = 108,734,017.54
  5. Step 5: Solve for x
    x = 108,734,017.54/10,443.96
  6. Step 6: Final answer
    x = 10,411.19

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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.