Home / 7,948.51-11,920.02-3,998.24

Finding the Fourth Proportional to 7,948.51, 11,920.02 and 3,998.24

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Solution

The fourth proportional to 7,948.51, 11,920.02 and 3,998.24 is: 5,995.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.51 : 11,920.02 = 3,998.24 : x
  2. Step 2: Convert to fraction form
    7,948.51/11,920.02 = 3,998.24/x
  3. Step 3: Cross multiply
    7,948.51x = 11,920.02 × 3,998.24
  4. Step 4: Simplify right side
    7,948.51x = 47,659,137.92
  5. Step 5: Solve for x
    x = 47,659,137.92/7,948.51
  6. Step 6: Final answer
    x = 5,995.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.