Home / 18,789.59-28,184.85-6,310.05

Finding the Fourth Proportional to 18,789.59, 28,184.85 and 6,310.05

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Solution

The fourth proportional to 18,789.59, 28,184.85 and 6,310.05 is: 9,465.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.59 : 28,184.85 = 6,310.05 : x
  2. Step 2: Convert to fraction form
    18,789.59/28,184.85 = 6,310.05/x
  3. Step 3: Cross multiply
    18,789.59x = 28,184.85 × 6,310.05
  4. Step 4: Simplify right side
    18,789.59x = 177,847,812.74
  5. Step 5: Solve for x
    x = 177,847,812.74/18,789.59
  6. Step 6: Final answer
    x = 9,465.23

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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.