Home / 8,417.07-12,611.62-5,120.19

Finding the Fourth Proportional to 8,417.07, 12,611.62 and 5,120.19

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Solution

The fourth proportional to 8,417.07, 12,611.62 and 5,120.19 is: 7,671.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.07 : 12,611.62 = 5,120.19 : x
  2. Step 2: Convert to fraction form
    8,417.07/12,611.62 = 5,120.19/x
  3. Step 3: Cross multiply
    8,417.07x = 12,611.62 × 5,120.19
  4. Step 4: Simplify right side
    8,417.07x = 64,573,890.61
  5. Step 5: Solve for x
    x = 64,573,890.61/8,417.07
  6. Step 6: Final answer
    x = 7,671.78

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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.