Home / 7,018.85-9,685.06-4,185.99

Finding the Fourth Proportional to 7,018.85, 9,685.06 and 4,185.99

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Solution

The fourth proportional to 7,018.85, 9,685.06 and 4,185.99 is: 5,776.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018.85 : 9,685.06 = 4,185.99 : x
  2. Step 2: Convert to fraction form
    7,018.85/9,685.06 = 4,185.99/x
  3. Step 3: Cross multiply
    7,018.85x = 9,685.06 × 4,185.99
  4. Step 4: Simplify right side
    7,018.85x = 40,541,553.84
  5. Step 5: Solve for x
    x = 40,541,553.84/7,018.85
  6. Step 6: Final answer
    x = 5,776.09

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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.