Home / 12,014.20-18,055.40-8,145.64

Finding the Fourth Proportional to 12,014.20, 18,055.40 and 8,145.64

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Solution

The fourth proportional to 12,014.20, 18,055.40 and 8,145.64 is: 12,241.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,014.20 : 18,055.40 = 8,145.64 : x
  2. Step 2: Convert to fraction form
    12,014.20/18,055.40 = 8,145.64/x
  3. Step 3: Cross multiply
    12,014.20x = 18,055.40 × 8,145.64
  4. Step 4: Simplify right side
    12,014.20x = 147,072,788.46
  5. Step 5: Solve for x
    x = 147,072,788.46/12,014.20
  6. Step 6: Final answer
    x = 12,241.58

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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.