Home / 18,415.68-27,627.84-6,729.12

Finding the Fourth Proportional to 18,415.68, 27,627.84 and 6,729.12

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Solution

The fourth proportional to 18,415.68, 27,627.84 and 6,729.12 is: 10,095.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.68 : 27,627.84 = 6,729.12 : x
  2. Step 2: Convert to fraction form
    18,415.68/27,627.84 = 6,729.12/x
  3. Step 3: Cross multiply
    18,415.68x = 27,627.84 × 6,729.12
  4. Step 4: Simplify right side
    18,415.68x = 185,911,050.70
  5. Step 5: Solve for x
    x = 185,911,050.70/18,415.68
  6. Step 6: Final answer
    x = 10,095.26

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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.