Home / 10,185.57-15,285.13-4,186.56

Finding the Fourth Proportional to 10,185.57, 15,285.13 and 4,186.56

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Solution

The fourth proportional to 10,185.57, 15,285.13 and 4,186.56 is: 6,282.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,185.57 : 15,285.13 = 4,186.56 : x
  2. Step 2: Convert to fraction form
    10,185.57/15,285.13 = 4,186.56/x
  3. Step 3: Cross multiply
    10,185.57x = 15,285.13 × 4,186.56
  4. Step 4: Simplify right side
    10,185.57x = 63,992,092.92
  5. Step 5: Solve for x
    x = 63,992,092.92/10,185.57
  6. Step 6: Final answer
    x = 6,282.63

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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.