Home / 10,834.21-16,226.20-7,905.25

Finding the Fourth Proportional to 10,834.21, 16,226.20 and 7,905.25

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Solution

The fourth proportional to 10,834.21, 16,226.20 and 7,905.25 is: 11,839.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,834.21 : 16,226.20 = 7,905.25 : x
  2. Step 2: Convert to fraction form
    10,834.21/16,226.20 = 7,905.25/x
  3. Step 3: Cross multiply
    10,834.21x = 16,226.20 × 7,905.25
  4. Step 4: Simplify right side
    10,834.21x = 128,272,167.55
  5. Step 5: Solve for x
    x = 128,272,167.55/10,834.21
  6. Step 6: Final answer
    x = 11,839.55

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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.