Home / 13,626.72-20,442.96-4,392

Finding the Fourth Proportional to 13,626.72, 20,442.96 and 4,392

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Solution

The fourth proportional to 13,626.72, 20,442.96 and 4,392 is: 6,588.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.72 : 20,442.96 = 4,392 : x
  2. Step 2: Convert to fraction form
    13,626.72/20,442.96 = 4,392/x
  3. Step 3: Cross multiply
    13,626.72x = 20,442.96 × 4,392
  4. Step 4: Simplify right side
    13,626.72x = 89,785,480.32
  5. Step 5: Solve for x
    x = 89,785,480.32/13,626.72
  6. Step 6: Final answer
    x = 6,588.93

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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.