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Finding the Fourth Proportional to 7,309.70, 10,950.15 and 4,379.30

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Solution

The fourth proportional to 7,309.70, 10,950.15 and 4,379.30 is: 6,560.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,309.70 : 10,950.15 = 4,379.30 : x
  2. Step 2: Convert to fraction form
    7,309.70/10,950.15 = 4,379.30/x
  3. Step 3: Cross multiply
    7,309.70x = 10,950.15 × 4,379.30
  4. Step 4: Simplify right side
    7,309.70x = 47,953,991.90
  5. Step 5: Solve for x
    x = 47,953,991.90/7,309.70
  6. Step 6: Final answer
    x = 6,560.32

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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.