Home / 13,670.76-20,506.12-3,282.50

Finding the Fourth Proportional to 13,670.76, 20,506.12 and 3,282.50

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Solution

The fourth proportional to 13,670.76, 20,506.12 and 3,282.50 is: 4,923.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.76 : 20,506.12 = 3,282.50 : x
  2. Step 2: Convert to fraction form
    13,670.76/20,506.12 = 3,282.50/x
  3. Step 3: Cross multiply
    13,670.76x = 20,506.12 × 3,282.50
  4. Step 4: Simplify right side
    13,670.76x = 67,311,338.90
  5. Step 5: Solve for x
    x = 67,311,338.90/13,670.76
  6. Step 6: Final answer
    x = 4,923.75

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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.