Home / 10,818.45-16,218.45-4,243.10

Finding the Fourth Proportional to 10,818.45, 16,218.45 and 4,243.10

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Solution

The fourth proportional to 10,818.45, 16,218.45 and 4,243.10 is: 6,361.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.45 : 16,218.45 = 4,243.10 : x
  2. Step 2: Convert to fraction form
    10,818.45/16,218.45 = 4,243.10/x
  3. Step 3: Cross multiply
    10,818.45x = 16,218.45 × 4,243.10
  4. Step 4: Simplify right side
    10,818.45x = 68,816,424.10
  5. Step 5: Solve for x
    x = 68,816,424.10/10,818.45
  6. Step 6: Final answer
    x = 6,361.02

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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.