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Finding the Fourth Proportional to 7,510.10, 11,274.42 and 7,122.62

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Solution

The fourth proportional to 7,510.10, 11,274.42 and 7,122.62 is: 10,692.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,510.10 : 11,274.42 = 7,122.62 : x
  2. Step 2: Convert to fraction form
    7,510.10/11,274.42 = 7,122.62/x
  3. Step 3: Cross multiply
    7,510.10x = 11,274.42 × 7,122.62
  4. Step 4: Simplify right side
    7,510.10x = 80,303,353.01
  5. Step 5: Solve for x
    x = 80,303,353.01/7,510.10
  6. Step 6: Final answer
    x = 10,692.72

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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.