Home / 10,981.87-16,440.50-6,808.48

Finding the Fourth Proportional to 10,981.87, 16,440.50 and 6,808.48

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Solution

The fourth proportional to 10,981.87, 16,440.50 and 6,808.48 is: 10,192.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.87 : 16,440.50 = 6,808.48 : x
  2. Step 2: Convert to fraction form
    10,981.87/16,440.50 = 6,808.48/x
  3. Step 3: Cross multiply
    10,981.87x = 16,440.50 × 6,808.48
  4. Step 4: Simplify right side
    10,981.87x = 111,934,791.36
  5. Step 5: Solve for x
    x = 111,934,791.36/10,981.87
  6. Step 6: Final answer
    x = 10,192.69

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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.