Home / 13,695.05-20,543.30-4,336.06

Finding the Fourth Proportional to 13,695.05, 20,543.30 and 4,336.06

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Solution

The fourth proportional to 13,695.05, 20,543.30 and 4,336.06 is: 6,504.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.05 : 20,543.30 = 4,336.06 : x
  2. Step 2: Convert to fraction form
    13,695.05/20,543.30 = 4,336.06/x
  3. Step 3: Cross multiply
    13,695.05x = 20,543.30 × 4,336.06
  4. Step 4: Simplify right side
    13,695.05x = 89,076,940.88
  5. Step 5: Solve for x
    x = 89,076,940.88/13,695.05
  6. Step 6: Final answer
    x = 6,504.32

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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.