Home / 10,990.20-16,497.45-6,834.90

Finding the Fourth Proportional to 10,990.20, 16,497.45 and 6,834.90

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Solution

The fourth proportional to 10,990.20, 16,497.45 and 6,834.90 is: 10,259.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.20 : 16,497.45 = 6,834.90 : x
  2. Step 2: Convert to fraction form
    10,990.20/16,497.45 = 6,834.90/x
  3. Step 3: Cross multiply
    10,990.20x = 16,497.45 × 6,834.90
  4. Step 4: Simplify right side
    10,990.20x = 112,758,421.01
  5. Step 5: Solve for x
    x = 112,758,421.01/10,990.20
  6. Step 6: Final answer
    x = 10,259.91

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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.