Home / 7,979.40-11,012.04-4,443.30

Finding the Fourth Proportional to 7,979.40, 11,012.04 and 4,443.30

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Solution

The fourth proportional to 7,979.40, 11,012.04 and 4,443.30 is: 6,132.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.40 : 11,012.04 = 4,443.30 : x
  2. Step 2: Convert to fraction form
    7,979.40/11,012.04 = 4,443.30/x
  3. Step 3: Cross multiply
    7,979.40x = 11,012.04 × 4,443.30
  4. Step 4: Simplify right side
    7,979.40x = 48,929,797.33
  5. Step 5: Solve for x
    x = 48,929,797.33/7,979.40
  6. Step 6: Final answer
    x = 6,132.01

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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.