Home / 7,640.72-11,513.14-6,284.43

Finding the Fourth Proportional to 7,640.72, 11,513.14 and 6,284.43

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Solution

The fourth proportional to 7,640.72, 11,513.14 and 6,284.43 is: 9,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640.72 : 11,513.14 = 6,284.43 : x
  2. Step 2: Convert to fraction form
    7,640.72/11,513.14 = 6,284.43/x
  3. Step 3: Cross multiply
    7,640.72x = 11,513.14 × 6,284.43
  4. Step 4: Simplify right side
    7,640.72x = 72,353,522.41
  5. Step 5: Solve for x
    x = 72,353,522.41/7,640.72
  6. Step 6: Final answer
    x = 9,469.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.