Home / 18,820.25-28,230.38-6,508.25

Finding the Fourth Proportional to 18,820.25, 28,230.38 and 6,508.25

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Solution

The fourth proportional to 18,820.25, 28,230.38 and 6,508.25 is: 9,762.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.25 : 28,230.38 = 6,508.25 : x
  2. Step 2: Convert to fraction form
    18,820.25/28,230.38 = 6,508.25/x
  3. Step 3: Cross multiply
    18,820.25x = 28,230.38 × 6,508.25
  4. Step 4: Simplify right side
    18,820.25x = 183,730,338.09
  5. Step 5: Solve for x
    x = 183,730,338.09/18,820.25
  6. Step 6: Final answer
    x = 9,762.38

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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.