Home / 18,818.13-28,228.57-6,338.16

Finding the Fourth Proportional to 18,818.13, 28,228.57 and 6,338.16

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Solution

The fourth proportional to 18,818.13, 28,228.57 and 6,338.16 is: 9,507.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.13 : 28,228.57 = 6,338.16 : x
  2. Step 2: Convert to fraction form
    18,818.13/28,228.57 = 6,338.16/x
  3. Step 3: Cross multiply
    18,818.13x = 28,228.57 × 6,338.16
  4. Step 4: Simplify right side
    18,818.13x = 178,917,177.39
  5. Step 5: Solve for x
    x = 178,917,177.39/18,818.13
  6. Step 6: Final answer
    x = 9,507.70

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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.