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Finding the Fourth Proportional to 8,606.74, 12,910.11 and 7,064.50

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Solution

The fourth proportional to 8,606.74, 12,910.11 and 7,064.50 is: 10,596.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.74 : 12,910.11 = 7,064.50 : x
  2. Step 2: Convert to fraction form
    8,606.74/12,910.11 = 7,064.50/x
  3. Step 3: Cross multiply
    8,606.74x = 12,910.11 × 7,064.50
  4. Step 4: Simplify right side
    8,606.74x = 91,203,472.10
  5. Step 5: Solve for x
    x = 91,203,472.10/8,606.74
  6. Step 6: Final answer
    x = 10,596.75

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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.