Home / 11,453.29-17,170.18-5,211.11

Finding the Fourth Proportional to 11,453.29, 17,170.18 and 5,211.11

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Solution

The fourth proportional to 11,453.29, 17,170.18 and 5,211.11 is: 7,812.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,453.29 : 17,170.18 = 5,211.11 : x
  2. Step 2: Convert to fraction form
    11,453.29/17,170.18 = 5,211.11/x
  3. Step 3: Cross multiply
    11,453.29x = 17,170.18 × 5,211.11
  4. Step 4: Simplify right side
    11,453.29x = 89,475,726.60
  5. Step 5: Solve for x
    x = 89,475,726.60/11,453.29
  6. Step 6: Final answer
    x = 7,812.23

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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.