Home / 12,186.66-18,280.00-4,395.48

Finding the Fourth Proportional to 12,186.66, 18,280.00 and 4,395.48

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Solution

The fourth proportional to 12,186.66, 18,280.00 and 4,395.48 is: 6,593.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186.66 : 18,280.00 = 4,395.48 : x
  2. Step 2: Convert to fraction form
    12,186.66/18,280.00 = 4,395.48/x
  3. Step 3: Cross multiply
    12,186.66x = 18,280.00 × 4,395.48
  4. Step 4: Simplify right side
    12,186.66x = 80,349,311.34
  5. Step 5: Solve for x
    x = 80,349,311.34/12,186.66
  6. Step 6: Final answer
    x = 6,593.22

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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.