Home / 18,889.50-28,335.42-5,742.84

Finding the Fourth Proportional to 18,889.50, 28,335.42 and 5,742.84

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Solution

The fourth proportional to 18,889.50, 28,335.42 and 5,742.84 is: 8,614.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889.50 : 28,335.42 = 5,742.84 : x
  2. Step 2: Convert to fraction form
    18,889.50/28,335.42 = 5,742.84/x
  3. Step 3: Cross multiply
    18,889.50x = 28,335.42 × 5,742.84
  4. Step 4: Simplify right side
    18,889.50x = 162,725,783.39
  5. Step 5: Solve for x
    x = 162,725,783.39/18,889.50
  6. Step 6: Final answer
    x = 8,614.62

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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.