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Finding the Fourth Proportional to 11,442.60, 17,163.90 and 10,211.40

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Solution

The fourth proportional to 11,442.60, 17,163.90 and 10,211.40 is: 15,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,442.60 : 17,163.90 = 10,211.40 : x
  2. Step 2: Convert to fraction form
    11,442.60/17,163.90 = 10,211.40/x
  3. Step 3: Cross multiply
    11,442.60x = 17,163.90 × 10,211.40
  4. Step 4: Simplify right side
    11,442.60x = 175,267,448.46
  5. Step 5: Solve for x
    x = 175,267,448.46/11,442.60
  6. Step 6: Final answer
    x = 15,317.10

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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.