Home / 13,655.26-20,485.28-5,650

Finding the Fourth Proportional to 13,655.26, 20,485.28 and 5,650

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Solution

The fourth proportional to 13,655.26, 20,485.28 and 5,650 is: 8,475.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.26 : 20,485.28 = 5,650 : x
  2. Step 2: Convert to fraction form
    13,655.26/20,485.28 = 5,650/x
  3. Step 3: Cross multiply
    13,655.26x = 20,485.28 × 5,650
  4. Step 4: Simplify right side
    13,655.26x = 115,741,832
  5. Step 5: Solve for x
    x = 115,741,832/13,655.26
  6. Step 6: Final answer
    x = 8,475.99

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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.