Home / 7,249.10-10,857.12-4,321.35

Finding the Fourth Proportional to 7,249.10, 10,857.12 and 4,321.35

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Solution

The fourth proportional to 7,249.10, 10,857.12 and 4,321.35 is: 6,472.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,249.10 : 10,857.12 = 4,321.35 : x
  2. Step 2: Convert to fraction form
    7,249.10/10,857.12 = 4,321.35/x
  3. Step 3: Cross multiply
    7,249.10x = 10,857.12 × 4,321.35
  4. Step 4: Simplify right side
    7,249.10x = 46,917,415.51
  5. Step 5: Solve for x
    x = 46,917,415.51/7,249.10
  6. Step 6: Final answer
    x = 6,472.18

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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.