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Finding the Fourth Proportional to 12,600.65, 17,391.53 and 7,565.09

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Solution

The fourth proportional to 12,600.65, 17,391.53 and 7,565.09 is: 10,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,600.65 : 17,391.53 = 7,565.09 : x
  2. Step 2: Convert to fraction form
    12,600.65/17,391.53 = 7,565.09/x
  3. Step 3: Cross multiply
    12,600.65x = 17,391.53 × 7,565.09
  4. Step 4: Simplify right side
    12,600.65x = 131,568,364.90
  5. Step 5: Solve for x
    x = 131,568,364.90/12,600.65
  6. Step 6: Final answer
    x = 10,441.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.