Home / 7,909.12-10,914.54-4,372.32

Finding the Fourth Proportional to 7,909.12, 10,914.54 and 4,372.32

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Solution

The fourth proportional to 7,909.12, 10,914.54 and 4,372.32 is: 6,033.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.12 : 10,914.54 = 4,372.32 : x
  2. Step 2: Convert to fraction form
    7,909.12/10,914.54 = 4,372.32/x
  3. Step 3: Cross multiply
    7,909.12x = 10,914.54 × 4,372.32
  4. Step 4: Simplify right side
    7,909.12x = 47,721,861.53
  5. Step 5: Solve for x
    x = 47,721,861.53/7,909.12
  6. Step 6: Final answer
    x = 6,033.78

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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.