Home / 7,984.12-11,017.92-4,447.12

Finding the Fourth Proportional to 7,984.12, 11,017.92 and 4,447.12

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Solution

The fourth proportional to 7,984.12, 11,017.92 and 4,447.12 is: 6,136.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.12 : 11,017.92 = 4,447.12 : x
  2. Step 2: Convert to fraction form
    7,984.12/11,017.92 = 4,447.12/x
  3. Step 3: Cross multiply
    7,984.12x = 11,017.92 × 4,447.12
  4. Step 4: Simplify right side
    7,984.12x = 48,998,012.39
  5. Step 5: Solve for x
    x = 48,998,012.39/7,984.12
  6. Step 6: Final answer
    x = 6,136.93

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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.