Home / 7,979.15-11,008.37-4,620.13

Finding the Fourth Proportional to 7,979.15, 11,008.37 and 4,620.13

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Solution

The fourth proportional to 7,979.15, 11,008.37 and 4,620.13 is: 6,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.15 : 11,008.37 = 4,620.13 : x
  2. Step 2: Convert to fraction form
    7,979.15/11,008.37 = 4,620.13/x
  3. Step 3: Cross multiply
    7,979.15x = 11,008.37 × 4,620.13
  4. Step 4: Simplify right side
    7,979.15x = 50,860,100.49
  5. Step 5: Solve for x
    x = 50,860,100.49/7,979.15
  6. Step 6: Final answer
    x = 6,374.13

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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.