Home / 7,919.16-11,867.40-4,449.12

Finding the Fourth Proportional to 7,919.16, 11,867.40 and 4,449.12

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Solution

The fourth proportional to 7,919.16, 11,867.40 and 4,449.12 is: 6,667.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.16 : 11,867.40 = 4,449.12 : x
  2. Step 2: Convert to fraction form
    7,919.16/11,867.40 = 4,449.12/x
  3. Step 3: Cross multiply
    7,919.16x = 11,867.40 × 4,449.12
  4. Step 4: Simplify right side
    7,919.16x = 52,799,486.69
  5. Step 5: Solve for x
    x = 52,799,486.69/7,919.16
  6. Step 6: Final answer
    x = 6,667.31

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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.