Home / 12,305.30-17,003.52-8,762.36

Finding the Fourth Proportional to 12,305.30, 17,003.52 and 8,762.36

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Solution

The fourth proportional to 12,305.30, 17,003.52 and 8,762.36 is: 12,107.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.30 : 17,003.52 = 8,762.36 : x
  2. Step 2: Convert to fraction form
    12,305.30/17,003.52 = 8,762.36/x
  3. Step 3: Cross multiply
    12,305.30x = 17,003.52 × 8,762.36
  4. Step 4: Simplify right side
    12,305.30x = 148,990,878.49
  5. Step 5: Solve for x
    x = 148,990,878.49/12,305.30
  6. Step 6: Final answer
    x = 12,107.87

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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.