Home / 13,878.60-20,827.98-5,446.32

Finding the Fourth Proportional to 13,878.60, 20,827.98 and 5,446.32

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Solution

The fourth proportional to 13,878.60, 20,827.98 and 5,446.32 is: 8,173.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878.60 : 20,827.98 = 5,446.32 : x
  2. Step 2: Convert to fraction form
    13,878.60/20,827.98 = 5,446.32/x
  3. Step 3: Cross multiply
    13,878.60x = 20,827.98 × 5,446.32
  4. Step 4: Simplify right side
    13,878.60x = 113,435,844.03
  5. Step 5: Solve for x
    x = 113,435,844.03/13,878.60
  6. Step 6: Final answer
    x = 8,173.44

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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.