Home / 7,165.24-9,887.82-4,021.48

Finding the Fourth Proportional to 7,165.24, 9,887.82 and 4,021.48

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Solution

The fourth proportional to 7,165.24, 9,887.82 and 4,021.48 is: 5,549.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,165.24 : 9,887.82 = 4,021.48 : x
  2. Step 2: Convert to fraction form
    7,165.24/9,887.82 = 4,021.48/x
  3. Step 3: Cross multiply
    7,165.24x = 9,887.82 × 4,021.48
  4. Step 4: Simplify right side
    7,165.24x = 39,763,670.37
  5. Step 5: Solve for x
    x = 39,763,670.37/7,165.24
  6. Step 6: Final answer
    x = 5,549.52

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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.