Home / 13,694.40-20,543.67-4,331.30

Finding the Fourth Proportional to 13,694.40, 20,543.67 and 4,331.30

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Solution

The fourth proportional to 13,694.40, 20,543.67 and 4,331.30 is: 6,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.40 : 20,543.67 = 4,331.30 : x
  2. Step 2: Convert to fraction form
    13,694.40/20,543.67 = 4,331.30/x
  3. Step 3: Cross multiply
    13,694.40x = 20,543.67 × 4,331.30
  4. Step 4: Simplify right side
    13,694.40x = 88,980,695.15
  5. Step 5: Solve for x
    x = 88,980,695.15/13,694.40
  6. Step 6: Final answer
    x = 6,497.60

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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.