Home / 7,990.26-11,026.31-5,007.71

Finding the Fourth Proportional to 7,990.26, 11,026.31 and 5,007.71

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Solution

The fourth proportional to 7,990.26, 11,026.31 and 5,007.71 is: 6,910.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.26 : 11,026.31 = 5,007.71 : x
  2. Step 2: Convert to fraction form
    7,990.26/11,026.31 = 5,007.71/x
  3. Step 3: Cross multiply
    7,990.26x = 11,026.31 × 5,007.71
  4. Step 4: Simplify right side
    7,990.26x = 55,216,482.68
  5. Step 5: Solve for x
    x = 55,216,482.68/7,990.26
  6. Step 6: Final answer
    x = 6,910.47

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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.