Home / 7,909.14-11,867.94-5,135.16

Finding the Fourth Proportional to 7,909.14, 11,867.94 and 5,135.16

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Solution

The fourth proportional to 7,909.14, 11,867.94 and 5,135.16 is: 7,705.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.14 : 11,867.94 = 5,135.16 : x
  2. Step 2: Convert to fraction form
    7,909.14/11,867.94 = 5,135.16/x
  3. Step 3: Cross multiply
    7,909.14x = 11,867.94 × 5,135.16
  4. Step 4: Simplify right side
    7,909.14x = 60,943,770.77
  5. Step 5: Solve for x
    x = 60,943,770.77/7,909.14
  6. Step 6: Final answer
    x = 7,705.49

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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.