Home / 13,511.80-20,268.27-4,152.18

Finding the Fourth Proportional to 13,511.80, 20,268.27 and 4,152.18

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Solution

The fourth proportional to 13,511.80, 20,268.27 and 4,152.18 is: 6,228.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.80 : 20,268.27 = 4,152.18 : x
  2. Step 2: Convert to fraction form
    13,511.80/20,268.27 = 4,152.18/x
  3. Step 3: Cross multiply
    13,511.80x = 20,268.27 × 4,152.18
  4. Step 4: Simplify right side
    13,511.80x = 84,157,505.33
  5. Step 5: Solve for x
    x = 84,157,505.33/13,511.80
  6. Step 6: Final answer
    x = 6,228.45

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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.