Home / 13,577.72-20,369.76-4,217.26

Finding the Fourth Proportional to 13,577.72, 20,369.76 and 4,217.26

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Solution

The fourth proportional to 13,577.72, 20,369.76 and 4,217.26 is: 6,326.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,577.72 : 20,369.76 = 4,217.26 : x
  2. Step 2: Convert to fraction form
    13,577.72/20,369.76 = 4,217.26/x
  3. Step 3: Cross multiply
    13,577.72x = 20,369.76 × 4,217.26
  4. Step 4: Simplify right side
    13,577.72x = 85,904,574.06
  5. Step 5: Solve for x
    x = 85,904,574.06/13,577.72
  6. Step 6: Final answer
    x = 6,326.88

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1.5x scale

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.