Home / 12,014.70-18,000.45-10,286.70

Finding the Fourth Proportional to 12,014.70, 18,000.45 and 10,286.70

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Solution

The fourth proportional to 12,014.70, 18,000.45 and 10,286.70 is: 15,411.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,014.70 : 18,000.45 = 10,286.70 : x
  2. Step 2: Convert to fraction form
    12,014.70/18,000.45 = 10,286.70/x
  3. Step 3: Cross multiply
    12,014.70x = 18,000.45 × 10,286.70
  4. Step 4: Simplify right side
    12,014.70x = 185,165,229.02
  5. Step 5: Solve for x
    x = 185,165,229.02/12,014.70
  6. Step 6: Final answer
    x = 15,411.56

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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.