Home / 18,678.12-28,013.22-6,195.24

Finding the Fourth Proportional to 18,678.12, 28,013.22 and 6,195.24

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Solution

The fourth proportional to 18,678.12, 28,013.22 and 6,195.24 is: 9,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.12 : 28,013.22 = 6,195.24 : x
  2. Step 2: Convert to fraction form
    18,678.12/28,013.22 = 6,195.24/x
  3. Step 3: Cross multiply
    18,678.12x = 28,013.22 × 6,195.24
  4. Step 4: Simplify right side
    18,678.12x = 173,548,621.07
  5. Step 5: Solve for x
    x = 173,548,621.07/18,678.12
  6. Step 6: Final answer
    x = 9,291.55

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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.