Home / 13,931.96-20,898.63-4,072.02

Finding the Fourth Proportional to 13,931.96, 20,898.63 and 4,072.02

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Solution

The fourth proportional to 13,931.96, 20,898.63 and 4,072.02 is: 6,108.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.96 : 20,898.63 = 4,072.02 : x
  2. Step 2: Convert to fraction form
    13,931.96/20,898.63 = 4,072.02/x
  3. Step 3: Cross multiply
    13,931.96x = 20,898.63 × 4,072.02
  4. Step 4: Simplify right side
    13,931.96x = 85,099,639.33
  5. Step 5: Solve for x
    x = 85,099,639.33/13,931.96
  6. Step 6: Final answer
    x = 6,108.23

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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.