Home / 10,109.90-15,165.30-3,446.30

Finding the Fourth Proportional to 10,109.90, 15,165.30 and 3,446.30

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Solution

The fourth proportional to 10,109.90, 15,165.30 and 3,446.30 is: 5,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.90 : 15,165.30 = 3,446.30 : x
  2. Step 2: Convert to fraction form
    10,109.90/15,165.30 = 3,446.30/x
  3. Step 3: Cross multiply
    10,109.90x = 15,165.30 × 3,446.30
  4. Step 4: Simplify right side
    10,109.90x = 52,264,173.39
  5. Step 5: Solve for x
    x = 52,264,173.39/10,109.90
  6. Step 6: Final answer
    x = 5,169.60

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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.