Home / 10,906.10-16,359.15-6,521.30

Finding the Fourth Proportional to 10,906.10, 16,359.15 and 6,521.30

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Solution

The fourth proportional to 10,906.10, 16,359.15 and 6,521.30 is: 9,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,906.10 : 16,359.15 = 6,521.30 : x
  2. Step 2: Convert to fraction form
    10,906.10/16,359.15 = 6,521.30/x
  3. Step 3: Cross multiply
    10,906.10x = 16,359.15 × 6,521.30
  4. Step 4: Simplify right side
    10,906.10x = 106,682,924.90
  5. Step 5: Solve for x
    x = 106,682,924.90/10,906.10
  6. Step 6: Final answer
    x = 9,781.95

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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.