Home / 12,500.63-17,249.36-7,121.12

Finding the Fourth Proportional to 12,500.63, 17,249.36 and 7,121.12

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Solution

The fourth proportional to 12,500.63, 17,249.36 and 7,121.12 is: 9,826.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500.63 : 17,249.36 = 7,121.12 : x
  2. Step 2: Convert to fraction form
    12,500.63/17,249.36 = 7,121.12/x
  3. Step 3: Cross multiply
    12,500.63x = 17,249.36 × 7,121.12
  4. Step 4: Simplify right side
    12,500.63x = 122,834,640.63
  5. Step 5: Solve for x
    x = 122,834,640.63/12,500.63
  6. Step 6: Final answer
    x = 9,826.28

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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.