Home / 7,021.36-9,691.68-4,503.88

Finding the Fourth Proportional to 7,021.36, 9,691.68 and 4,503.88

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Solution

The fourth proportional to 7,021.36, 9,691.68 and 4,503.88 is: 6,216.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.36 : 9,691.68 = 4,503.88 : x
  2. Step 2: Convert to fraction form
    7,021.36/9,691.68 = 4,503.88/x
  3. Step 3: Cross multiply
    7,021.36x = 9,691.68 × 4,503.88
  4. Step 4: Simplify right side
    7,021.36x = 43,650,163.72
  5. Step 5: Solve for x
    x = 43,650,163.72/7,021.36
  6. Step 6: Final answer
    x = 6,216.77

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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.