Home / 11,445.13-17,169.63-3,545.83

Finding the Fourth Proportional to 11,445.13, 17,169.63 and 3,545.83

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Solution

The fourth proportional to 11,445.13, 17,169.63 and 3,545.83 is: 5,319.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.13 : 17,169.63 = 3,545.83 : x
  2. Step 2: Convert to fraction form
    11,445.13/17,169.63 = 3,545.83/x
  3. Step 3: Cross multiply
    11,445.13x = 17,169.63 × 3,545.83
  4. Step 4: Simplify right side
    11,445.13x = 60,880,589.14
  5. Step 5: Solve for x
    x = 60,880,589.14/11,445.13
  6. Step 6: Final answer
    x = 5,319.34

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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.