Home / 12,199.46-18,299.88-3,435.08

Finding the Fourth Proportional to 12,199.46, 18,299.88 and 3,435.08

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Solution

The fourth proportional to 12,199.46, 18,299.88 and 3,435.08 is: 5,152.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199.46 : 18,299.88 = 3,435.08 : x
  2. Step 2: Convert to fraction form
    12,199.46/18,299.88 = 3,435.08/x
  3. Step 3: Cross multiply
    12,199.46x = 18,299.88 × 3,435.08
  4. Step 4: Simplify right side
    12,199.46x = 62,861,460.29
  5. Step 5: Solve for x
    x = 62,861,460.29/12,199.46
  6. Step 6: Final answer
    x = 5,152.81

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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.