Home / 13,704.64-20,558.90-4,217.74

Finding the Fourth Proportional to 13,704.64, 20,558.90 and 4,217.74

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Solution

The fourth proportional to 13,704.64, 20,558.90 and 4,217.74 is: 6,327.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,704.64 : 20,558.90 = 4,217.74 : x
  2. Step 2: Convert to fraction form
    13,704.64/20,558.90 = 4,217.74/x
  3. Step 3: Cross multiply
    13,704.64x = 20,558.90 × 4,217.74
  4. Step 4: Simplify right side
    13,704.64x = 86,712,094.89
  5. Step 5: Solve for x
    x = 86,712,094.89/13,704.64
  6. Step 6: Final answer
    x = 6,327.21

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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.