Home / 12,074.20-18,089.70-10,216.60

Finding the Fourth Proportional to 12,074.20, 18,089.70 and 10,216.60

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Solution

The fourth proportional to 12,074.20, 18,089.70 and 10,216.60 is: 15,306.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,074.20 : 18,089.70 = 10,216.60 : x
  2. Step 2: Convert to fraction form
    12,074.20/18,089.70 = 10,216.60/x
  3. Step 3: Cross multiply
    12,074.20x = 18,089.70 × 10,216.60
  4. Step 4: Simplify right side
    12,074.20x = 184,815,229.02
  5. Step 5: Solve for x
    x = 184,815,229.02/12,074.20
  6. Step 6: Final answer
    x = 15,306.62

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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.