Home / 7,979.91-11,012.13-4,443.06

Finding the Fourth Proportional to 7,979.91, 11,012.13 and 4,443.06

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Solution

The fourth proportional to 7,979.91, 11,012.13 and 4,443.06 is: 6,131.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.91 : 11,012.13 = 4,443.06 : x
  2. Step 2: Convert to fraction form
    7,979.91/11,012.13 = 4,443.06/x
  3. Step 3: Cross multiply
    7,979.91x = 11,012.13 × 4,443.06
  4. Step 4: Simplify right side
    7,979.91x = 48,927,554.32
  5. Step 5: Solve for x
    x = 48,927,554.32/7,979.91
  6. Step 6: Final answer
    x = 6,131.34

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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.