Home / 18,750.04-28,132.82-8,214.61

Finding the Fourth Proportional to 18,750.04, 28,132.82 and 8,214.61

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Solution

The fourth proportional to 18,750.04, 28,132.82 and 8,214.61 is: 12,325.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.04 : 28,132.82 = 8,214.61 : x
  2. Step 2: Convert to fraction form
    18,750.04/28,132.82 = 8,214.61/x
  3. Step 3: Cross multiply
    18,750.04x = 28,132.82 × 8,214.61
  4. Step 4: Simplify right side
    18,750.04x = 231,100,144.50
  5. Step 5: Solve for x
    x = 231,100,144.50/18,750.04
  6. Step 6: Final answer
    x = 12,325.31

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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.