Home / 7,209.24-9,948.38-4,021.98

Finding the Fourth Proportional to 7,209.24, 9,948.38 and 4,021.98

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Solution

The fourth proportional to 7,209.24, 9,948.38 and 4,021.98 is: 5,550.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,209.24 : 9,948.38 = 4,021.98 : x
  2. Step 2: Convert to fraction form
    7,209.24/9,948.38 = 4,021.98/x
  3. Step 3: Cross multiply
    7,209.24x = 9,948.38 × 4,021.98
  4. Step 4: Simplify right side
    7,209.24x = 40,012,185.39
  5. Step 5: Solve for x
    x = 40,012,185.39/7,209.24
  6. Step 6: Final answer
    x = 5,550.13

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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.