Home / 13,485.49-20,229.20-4,251.25

Finding the Fourth Proportional to 13,485.49, 20,229.20 and 4,251.25

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Solution

The fourth proportional to 13,485.49, 20,229.20 and 4,251.25 is: 6,377.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.49 : 20,229.20 = 4,251.25 : x
  2. Step 2: Convert to fraction form
    13,485.49/20,229.20 = 4,251.25/x
  3. Step 3: Cross multiply
    13,485.49x = 20,229.20 × 4,251.25
  4. Step 4: Simplify right side
    13,485.49x = 85,999,386.50
  5. Step 5: Solve for x
    x = 85,999,386.50/13,485.49
  6. Step 6: Final answer
    x = 6,377.18

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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.