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Finding the Fourth Proportional to 9,080.40, 13,604.40 and 8,538.24

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Solution

The fourth proportional to 9,080.40, 13,604.40 and 8,538.24 is: 12,792.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,080.40 : 13,604.40 = 8,538.24 : x
  2. Step 2: Convert to fraction form
    9,080.40/13,604.40 = 8,538.24/x
  3. Step 3: Cross multiply
    9,080.40x = 13,604.40 × 8,538.24
  4. Step 4: Simplify right side
    9,080.40x = 116,157,632.26
  5. Step 5: Solve for x
    x = 116,157,632.26/9,080.40
  6. Step 6: Final answer
    x = 12,792.13

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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.