Home / 13,551.24-20,319.36-4,188.60

Finding the Fourth Proportional to 13,551.24, 20,319.36 and 4,188.60

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Solution

The fourth proportional to 13,551.24, 20,319.36 and 4,188.60 is: 6,280.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.24 : 20,319.36 = 4,188.60 : x
  2. Step 2: Convert to fraction form
    13,551.24/20,319.36 = 4,188.60/x
  3. Step 3: Cross multiply
    13,551.24x = 20,319.36 × 4,188.60
  4. Step 4: Simplify right side
    13,551.24x = 85,109,671.30
  5. Step 5: Solve for x
    x = 85,109,671.30/13,551.24
  6. Step 6: Final answer
    x = 6,280.58

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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.