Home / 7,042.88-9,716.64-4,247.36

Finding the Fourth Proportional to 7,042.88, 9,716.64 and 4,247.36

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Solution

The fourth proportional to 7,042.88, 9,716.64 and 4,247.36 is: 5,859.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042.88 : 9,716.64 = 4,247.36 : x
  2. Step 2: Convert to fraction form
    7,042.88/9,716.64 = 4,247.36/x
  3. Step 3: Cross multiply
    7,042.88x = 9,716.64 × 4,247.36
  4. Step 4: Simplify right side
    7,042.88x = 41,270,068.07
  5. Step 5: Solve for x
    x = 41,270,068.07/7,042.88
  6. Step 6: Final answer
    x = 5,859.83

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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.