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Finding the Fourth Proportional to 9,372.51, 13,989.51 and 8,265.65

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Solution

The fourth proportional to 9,372.51, 13,989.51 and 8,265.65 is: 12,337.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.51 : 13,989.51 = 8,265.65 : x
  2. Step 2: Convert to fraction form
    9,372.51/13,989.51 = 8,265.65/x
  3. Step 3: Cross multiply
    9,372.51x = 13,989.51 × 8,265.65
  4. Step 4: Simplify right side
    9,372.51x = 115,632,323.38
  5. Step 5: Solve for x
    x = 115,632,323.38/9,372.51
  6. Step 6: Final answer
    x = 12,337.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.