Home / 6,929.92-10,396.72-1,999.48

Finding the Fourth Proportional to 6,929.92, 10,396.72 and 1,999.48

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Solution

The fourth proportional to 6,929.92, 10,396.72 and 1,999.48 is: 2,999.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929.92 : 10,396.72 = 1,999.48 : x
  2. Step 2: Convert to fraction form
    6,929.92/10,396.72 = 1,999.48/x
  3. Step 3: Cross multiply
    6,929.92x = 10,396.72 × 1,999.48
  4. Step 4: Simplify right side
    6,929.92x = 20,788,033.71
  5. Step 5: Solve for x
    x = 20,788,033.71/6,929.92
  6. Step 6: Final answer
    x = 2,999.75

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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.