Home / 7,937.07-11,003.30-7,515.75

Finding the Fourth Proportional to 7,937.07, 11,003.30 and 7,515.75

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Solution

The fourth proportional to 7,937.07, 11,003.30 and 7,515.75 is: 10,419.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,937.07 : 11,003.30 = 7,515.75 : x
  2. Step 2: Convert to fraction form
    7,937.07/11,003.30 = 7,515.75/x
  3. Step 3: Cross multiply
    7,937.07x = 11,003.30 × 7,515.75
  4. Step 4: Simplify right side
    7,937.07x = 82,698,083.84
  5. Step 5: Solve for x
    x = 82,698,083.84/7,937.07
  6. Step 6: Final answer
    x = 10,419.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.