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Finding the Fourth Proportional to 9,034.07, 13,520.72 and 8,689.01

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Solution

The fourth proportional to 9,034.07, 13,520.72 and 8,689.01 is: 13,004.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,034.07 : 13,520.72 = 8,689.01 : x
  2. Step 2: Convert to fraction form
    9,034.07/13,520.72 = 8,689.01/x
  3. Step 3: Cross multiply
    9,034.07x = 13,520.72 × 8,689.01
  4. Step 4: Simplify right side
    9,034.07x = 117,481,625.41
  5. Step 5: Solve for x
    x = 117,481,625.41/9,034.07
  6. Step 6: Final answer
    x = 13,004.29

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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.