Home / 13,907.61-20,861.42-3,377.64

Finding the Fourth Proportional to 13,907.61, 20,861.42 and 3,377.64

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Solution

The fourth proportional to 13,907.61, 20,861.42 and 3,377.64 is: 5,066.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.61 : 20,861.42 = 3,377.64 : x
  2. Step 2: Convert to fraction form
    13,907.61/20,861.42 = 3,377.64/x
  3. Step 3: Cross multiply
    13,907.61x = 20,861.42 × 3,377.64
  4. Step 4: Simplify right side
    13,907.61x = 70,462,366.65
  5. Step 5: Solve for x
    x = 70,462,366.65/13,907.61
  6. Step 6: Final answer
    x = 5,066.46

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Similar ratio
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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.