Home / 13,686.72-20,527.08-4,327.44

Finding the Fourth Proportional to 13,686.72, 20,527.08 and 4,327.44

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Solution

The fourth proportional to 13,686.72, 20,527.08 and 4,327.44 is: 6,490.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686.72 : 20,527.08 = 4,327.44 : x
  2. Step 2: Convert to fraction form
    13,686.72/20,527.08 = 4,327.44/x
  3. Step 3: Cross multiply
    13,686.72x = 20,527.08 × 4,327.44
  4. Step 4: Simplify right side
    13,686.72x = 88,829,707.08
  5. Step 5: Solve for x
    x = 88,829,707.08/13,686.72
  6. Step 6: Final answer
    x = 6,490.21

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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.