Home / 12,015.68-18,031.96-4,225.04

Finding the Fourth Proportional to 12,015.68, 18,031.96 and 4,225.04

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Solution

The fourth proportional to 12,015.68, 18,031.96 and 4,225.04 is: 6,340.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.68 : 18,031.96 = 4,225.04 : x
  2. Step 2: Convert to fraction form
    12,015.68/18,031.96 = 4,225.04/x
  3. Step 3: Cross multiply
    12,015.68x = 18,031.96 × 4,225.04
  4. Step 4: Simplify right side
    12,015.68x = 76,185,752.28
  5. Step 5: Solve for x
    x = 76,185,752.28/12,015.68
  6. Step 6: Final answer
    x = 6,340.53

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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.