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Finding the Fourth Proportional to 7,373.11, 10,172.10 and 4,720.09

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Solution

The fourth proportional to 7,373.11, 10,172.10 and 4,720.09 is: 6,511.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,373.11 : 10,172.10 = 4,720.09 : x
  2. Step 2: Convert to fraction form
    7,373.11/10,172.10 = 4,720.09/x
  3. Step 3: Cross multiply
    7,373.11x = 10,172.10 × 4,720.09
  4. Step 4: Simplify right side
    7,373.11x = 48,013,227.49
  5. Step 5: Solve for x
    x = 48,013,227.49/7,373.11
  6. Step 6: Final answer
    x = 6,511.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.