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Finding the Fourth Proportional to 9,039.57, 13,563.99 and 4,422.57

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Solution

The fourth proportional to 9,039.57, 13,563.99 and 4,422.57 is: 6,636.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,039.57 : 13,563.99 = 4,422.57 : x
  2. Step 2: Convert to fraction form
    9,039.57/13,563.99 = 4,422.57/x
  3. Step 3: Cross multiply
    9,039.57x = 13,563.99 × 4,422.57
  4. Step 4: Simplify right side
    9,039.57x = 59,987,695.25
  5. Step 5: Solve for x
    x = 59,987,695.25/9,039.57
  6. Step 6: Final answer
    x = 6,636.12

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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.