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Finding the Fourth Proportional to 7,475.12, 11,212.69 and 7,018.41

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Solution

The fourth proportional to 7,475.12, 11,212.69 and 7,018.41 is: 10,527.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.12 : 11,212.69 = 7,018.41 : x
  2. Step 2: Convert to fraction form
    7,475.12/11,212.69 = 7,018.41/x
  3. Step 3: Cross multiply
    7,475.12x = 11,212.69 × 7,018.41
  4. Step 4: Simplify right side
    7,475.12x = 78,695,255.85
  5. Step 5: Solve for x
    x = 78,695,255.85/7,475.12
  6. Step 6: Final answer
    x = 10,527.63

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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.