Home / 18,820.32-28,220.38-6,336.18

Finding the Fourth Proportional to 18,820.32, 28,220.38 and 6,336.18

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Solution

The fourth proportional to 18,820.32, 28,220.38 and 6,336.18 is: 9,500.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.32 : 28,220.38 = 6,336.18 : x
  2. Step 2: Convert to fraction form
    18,820.32/28,220.38 = 6,336.18/x
  3. Step 3: Cross multiply
    18,820.32x = 28,220.38 × 6,336.18
  4. Step 4: Simplify right side
    18,820.32x = 178,809,407.35
  5. Step 5: Solve for x
    x = 178,809,407.35/18,820.32
  6. Step 6: Final answer
    x = 9,500.87

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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.