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Finding the Fourth Proportional to 7,909.53, 10,914.39 and 4,372.26

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Solution

The fourth proportional to 7,909.53, 10,914.39 and 4,372.26 is: 6,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.53 : 10,914.39 = 4,372.26 : x
  2. Step 2: Convert to fraction form
    7,909.53/10,914.39 = 4,372.26/x
  3. Step 3: Cross multiply
    7,909.53x = 10,914.39 × 4,372.26
  4. Step 4: Simplify right side
    7,909.53x = 47,720,550.82
  5. Step 5: Solve for x
    x = 47,720,550.82/7,909.53
  6. Step 6: Final answer
    x = 6,033.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.