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Finding the Fourth Proportional to 8,718.59, 12,063.33 and 7,601.86

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Solution

The fourth proportional to 8,718.59, 12,063.33 and 7,601.86 is: 10,518.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.59 : 12,063.33 = 7,601.86 : x
  2. Step 2: Convert to fraction form
    8,718.59/12,063.33 = 7,601.86/x
  3. Step 3: Cross multiply
    8,718.59x = 12,063.33 × 7,601.86
  4. Step 4: Simplify right side
    8,718.59x = 91,703,745.79
  5. Step 5: Solve for x
    x = 91,703,745.79/8,718.59
  6. Step 6: Final answer
    x = 10,518.19

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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.