Home / 12,200.26-18,300.30-3,435.13

Finding the Fourth Proportional to 12,200.26, 18,300.30 and 3,435.13

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Solution

The fourth proportional to 12,200.26, 18,300.30 and 3,435.13 is: 5,152.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.26 : 18,300.30 = 3,435.13 : x
  2. Step 2: Convert to fraction form
    12,200.26/18,300.30 = 3,435.13/x
  3. Step 3: Cross multiply
    12,200.26x = 18,300.30 × 3,435.13
  4. Step 4: Simplify right side
    12,200.26x = 62,863,909.54
  5. Step 5: Solve for x
    x = 62,863,909.54/12,200.26
  6. Step 6: Final answer
    x = 5,152.67

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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.