Home / 13,671.75-20,507.64-3,283.50

Finding the Fourth Proportional to 13,671.75, 20,507.64 and 3,283.50

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Solution

The fourth proportional to 13,671.75, 20,507.64 and 3,283.50 is: 4,925.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.75 : 20,507.64 = 3,283.50 : x
  2. Step 2: Convert to fraction form
    13,671.75/20,507.64 = 3,283.50/x
  3. Step 3: Cross multiply
    13,671.75x = 20,507.64 × 3,283.50
  4. Step 4: Simplify right side
    13,671.75x = 67,336,835.94
  5. Step 5: Solve for x
    x = 67,336,835.94/13,671.75
  6. Step 6: Final answer
    x = 4,925.25

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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.