Home / 12,513.49-18,757.16-4,186.66

Finding the Fourth Proportional to 12,513.49, 18,757.16 and 4,186.66

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Solution

The fourth proportional to 12,513.49, 18,757.16 and 4,186.66 is: 6,275.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,513.49 : 18,757.16 = 4,186.66 : x
  2. Step 2: Convert to fraction form
    12,513.49/18,757.16 = 4,186.66/x
  3. Step 3: Cross multiply
    12,513.49x = 18,757.16 × 4,186.66
  4. Step 4: Simplify right side
    12,513.49x = 78,529,794.13
  5. Step 5: Solve for x
    x = 78,529,794.13/12,513.49
  6. Step 6: Final answer
    x = 6,275.61

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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.