Home / 19,206.30-28,811.37-6,891.42

Finding the Fourth Proportional to 19,206.30, 28,811.37 and 6,891.42

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Solution

The fourth proportional to 19,206.30, 28,811.37 and 6,891.42 is: 10,337.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,206.30 : 28,811.37 = 6,891.42 : x
  2. Step 2: Convert to fraction form
    19,206.30/28,811.37 = 6,891.42/x
  3. Step 3: Cross multiply
    19,206.30x = 28,811.37 × 6,891.42
  4. Step 4: Simplify right side
    19,206.30x = 198,551,251.45
  5. Step 5: Solve for x
    x = 198,551,251.45/19,206.30
  6. Step 6: Final answer
    x = 10,337.82

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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.