Home / 13,670.21-20,506.16-4,310.55

Finding the Fourth Proportional to 13,670.21, 20,506.16 and 4,310.55

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Solution

The fourth proportional to 13,670.21, 20,506.16 and 4,310.55 is: 6,466.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.21 : 20,506.16 = 4,310.55 : x
  2. Step 2: Convert to fraction form
    13,670.21/20,506.16 = 4,310.55/x
  3. Step 3: Cross multiply
    13,670.21x = 20,506.16 × 4,310.55
  4. Step 4: Simplify right side
    13,670.21x = 88,392,838.76
  5. Step 5: Solve for x
    x = 88,392,838.76/13,670.21
  6. Step 6: Final answer
    x = 6,466.09

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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.