Home / 7,909.06-10,914.34-4,372.20

Finding the Fourth Proportional to 7,909.06, 10,914.34 and 4,372.20

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Solution

The fourth proportional to 7,909.06, 10,914.34 and 4,372.20 is: 6,033.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.06 : 10,914.34 = 4,372.20 : x
  2. Step 2: Convert to fraction form
    7,909.06/10,914.34 = 4,372.20/x
  3. Step 3: Cross multiply
    7,909.06x = 10,914.34 × 4,372.20
  4. Step 4: Simplify right side
    7,909.06x = 47,719,677.35
  5. Step 5: Solve for x
    x = 47,719,677.35/7,909.06
  6. Step 6: Final answer
    x = 6,033.55

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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.