Home / 13,454.15-20,181.33-4,689.05

Finding the Fourth Proportional to 13,454.15, 20,181.33 and 4,689.05

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Solution

The fourth proportional to 13,454.15, 20,181.33 and 4,689.05 is: 7,033.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.15 : 20,181.33 = 4,689.05 : x
  2. Step 2: Convert to fraction form
    13,454.15/20,181.33 = 4,689.05/x
  3. Step 3: Cross multiply
    13,454.15x = 20,181.33 × 4,689.05
  4. Step 4: Simplify right side
    13,454.15x = 94,631,164.53
  5. Step 5: Solve for x
    x = 94,631,164.53/13,454.15
  6. Step 6: Final answer
    x = 7,033.61

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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.