Home / 13,670.18-20,505.30-4,311.08

Finding the Fourth Proportional to 13,670.18, 20,505.30 and 4,311.08

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Solution

The fourth proportional to 13,670.18, 20,505.30 and 4,311.08 is: 6,466.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.18 : 20,505.30 = 4,311.08 : x
  2. Step 2: Convert to fraction form
    13,670.18/20,505.30 = 4,311.08/x
  3. Step 3: Cross multiply
    13,670.18x = 20,505.30 × 4,311.08
  4. Step 4: Simplify right side
    13,670.18x = 88,399,988.72
  5. Step 5: Solve for x
    x = 88,399,988.72/13,670.18
  6. Step 6: Final answer
    x = 6,466.63

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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.