Home / 13,639.39-20,458.44-4,277.95

Finding the Fourth Proportional to 13,639.39, 20,458.44 and 4,277.95

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Solution

The fourth proportional to 13,639.39, 20,458.44 and 4,277.95 is: 6,416.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639.39 : 20,458.44 = 4,277.95 : x
  2. Step 2: Convert to fraction form
    13,639.39/20,458.44 = 4,277.95/x
  3. Step 3: Cross multiply
    13,639.39x = 20,458.44 × 4,277.95
  4. Step 4: Simplify right side
    13,639.39x = 87,520,132.25
  5. Step 5: Solve for x
    x = 87,520,132.25/13,639.39
  6. Step 6: Final answer
    x = 6,416.72

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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.