Home / 18,679.10-28,011.65-6,196.79

Finding the Fourth Proportional to 18,679.10, 28,011.65 and 6,196.79

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Solution

The fourth proportional to 18,679.10, 28,011.65 and 6,196.79 is: 9,292.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679.10 : 28,011.65 = 6,196.79 : x
  2. Step 2: Convert to fraction form
    18,679.10/28,011.65 = 6,196.79/x
  3. Step 3: Cross multiply
    18,679.10x = 28,011.65 × 6,196.79
  4. Step 4: Simplify right side
    18,679.10x = 173,582,141.56
  5. Step 5: Solve for x
    x = 173,582,141.56/18,679.10
  6. Step 6: Final answer
    x = 9,292.86

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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.