Home / 13,913.57-20,871.63-4,553.64

Finding the Fourth Proportional to 13,913.57, 20,871.63 and 4,553.64

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Solution

The fourth proportional to 13,913.57, 20,871.63 and 4,553.64 is: 6,830.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913.57 : 20,871.63 = 4,553.64 : x
  2. Step 2: Convert to fraction form
    13,913.57/20,871.63 = 4,553.64/x
  3. Step 3: Cross multiply
    13,913.57x = 20,871.63 × 4,553.64
  4. Step 4: Simplify right side
    13,913.57x = 95,041,889.23
  5. Step 5: Solve for x
    x = 95,041,889.23/13,913.57
  6. Step 6: Final answer
    x = 6,830.88

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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.