Home / 12,504.12-18,756.20-5,108.56

Finding the Fourth Proportional to 12,504.12, 18,756.20 and 5,108.56

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Solution

The fourth proportional to 12,504.12, 18,756.20 and 5,108.56 is: 7,662.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504.12 : 18,756.20 = 5,108.56 : x
  2. Step 2: Convert to fraction form
    12,504.12/18,756.20 = 5,108.56/x
  3. Step 3: Cross multiply
    12,504.12x = 18,756.20 × 5,108.56
  4. Step 4: Simplify right side
    12,504.12x = 95,817,173.07
  5. Step 5: Solve for x
    x = 95,817,173.07/12,504.12
  6. Step 6: Final answer
    x = 7,662.85

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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.