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Finding the Fourth Proportional to 7,166.30, 10,751.05 and 5,611.10

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Solution

The fourth proportional to 7,166.30, 10,751.05 and 5,611.10 is: 8,417.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,166.30 : 10,751.05 = 5,611.10 : x
  2. Step 2: Convert to fraction form
    7,166.30/10,751.05 = 5,611.10/x
  3. Step 3: Cross multiply
    7,166.30x = 10,751.05 × 5,611.10
  4. Step 4: Simplify right side
    7,166.30x = 60,325,216.66
  5. Step 5: Solve for x
    x = 60,325,216.66/7,166.30
  6. Step 6: Final answer
    x = 8,417.90

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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.