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Finding the Fourth Proportional to 9,009.55, 13,520.22 and 4,079.23

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Solution

The fourth proportional to 9,009.55, 13,520.22 and 4,079.23 is: 6,121.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.55 : 13,520.22 = 4,079.23 : x
  2. Step 2: Convert to fraction form
    9,009.55/13,520.22 = 4,079.23/x
  3. Step 3: Cross multiply
    9,009.55x = 13,520.22 × 4,079.23
  4. Step 4: Simplify right side
    9,009.55x = 55,152,087.03
  5. Step 5: Solve for x
    x = 55,152,087.03/9,009.55
  6. Step 6: Final answer
    x = 6,121.51

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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.