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Finding the Fourth Proportional to 7,419.62, 11,113.43 and 6,983.43

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Solution

The fourth proportional to 7,419.62, 11,113.43 and 6,983.43 is: 10,460.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.62 : 11,113.43 = 6,983.43 : x
  2. Step 2: Convert to fraction form
    7,419.62/11,113.43 = 6,983.43/x
  3. Step 3: Cross multiply
    7,419.62x = 11,113.43 × 6,983.43
  4. Step 4: Simplify right side
    7,419.62x = 77,609,825.55
  5. Step 5: Solve for x
    x = 77,609,825.55/7,419.62
  6. Step 6: Final answer
    x = 10,460.09

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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.