Home / 7,979.07-11,010.69-4,621.62

Finding the Fourth Proportional to 7,979.07, 11,010.69 and 4,621.62

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Solution

The fourth proportional to 7,979.07, 11,010.69 and 4,621.62 is: 6,377.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.07 : 11,010.69 = 4,621.62 : x
  2. Step 2: Convert to fraction form
    7,979.07/11,010.69 = 4,621.62/x
  3. Step 3: Cross multiply
    7,979.07x = 11,010.69 × 4,621.62
  4. Step 4: Simplify right side
    7,979.07x = 50,887,225.12
  5. Step 5: Solve for x
    x = 50,887,225.12/7,979.07
  6. Step 6: Final answer
    x = 6,377.59

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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.