Home / 8,717.46-12,029.69-4,940.40

Finding the Fourth Proportional to 8,717.46, 12,029.69 and 4,940.40

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Solution

The fourth proportional to 8,717.46, 12,029.69 and 4,940.40 is: 6,817.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.46 : 12,029.69 = 4,940.40 : x
  2. Step 2: Convert to fraction form
    8,717.46/12,029.69 = 4,940.40/x
  3. Step 3: Cross multiply
    8,717.46x = 12,029.69 × 4,940.40
  4. Step 4: Simplify right side
    8,717.46x = 59,431,537.94
  5. Step 5: Solve for x
    x = 59,431,537.94/8,717.46
  6. Step 6: Final answer
    x = 6,817.53

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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.