Home / 12,124.32-18,170.28-5,097.84

Finding the Fourth Proportional to 12,124.32, 18,170.28 and 5,097.84

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Solution

The fourth proportional to 12,124.32, 18,170.28 and 5,097.84 is: 7,639.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.32 : 18,170.28 = 5,097.84 : x
  2. Step 2: Convert to fraction form
    12,124.32/18,170.28 = 5,097.84/x
  3. Step 3: Cross multiply
    12,124.32x = 18,170.28 × 5,097.84
  4. Step 4: Simplify right side
    12,124.32x = 92,629,180.20
  5. Step 5: Solve for x
    x = 92,629,180.20/12,124.32
  6. Step 6: Final answer
    x = 7,639.95

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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.