Home / 18,752.04-28,135.82-8,216.62

Finding the Fourth Proportional to 18,752.04, 28,135.82 and 8,216.62

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Solution

The fourth proportional to 18,752.04, 28,135.82 and 8,216.62 is: 12,328.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.04 : 28,135.82 = 8,216.62 : x
  2. Step 2: Convert to fraction form
    18,752.04/28,135.82 = 8,216.62/x
  3. Step 3: Cross multiply
    18,752.04x = 28,135.82 × 8,216.62
  4. Step 4: Simplify right side
    18,752.04x = 231,181,341.33
  5. Step 5: Solve for x
    x = 231,181,341.33/18,752.04
  6. Step 6: Final answer
    x = 12,328.33

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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.