Home / 7,979.89-11,012.07-4,443.43

Finding the Fourth Proportional to 7,979.89, 11,012.07 and 4,443.43

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Solution

The fourth proportional to 7,979.89, 11,012.07 and 4,443.43 is: 6,131.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.89 : 11,012.07 = 4,443.43 : x
  2. Step 2: Convert to fraction form
    7,979.89/11,012.07 = 4,443.43/x
  3. Step 3: Cross multiply
    7,979.89x = 11,012.07 × 4,443.43
  4. Step 4: Simplify right side
    7,979.89x = 48,931,362.20
  5. Step 5: Solve for x
    x = 48,931,362.20/7,979.89
  6. Step 6: Final answer
    x = 6,131.83

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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.