Home / 7,738.17-11,603.43-5,515.80

Finding the Fourth Proportional to 7,738.17, 11,603.43 and 5,515.80

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Solution

The fourth proportional to 7,738.17, 11,603.43 and 5,515.80 is: 8,270.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.17 : 11,603.43 = 5,515.80 : x
  2. Step 2: Convert to fraction form
    7,738.17/11,603.43 = 5,515.80/x
  3. Step 3: Cross multiply
    7,738.17x = 11,603.43 × 5,515.80
  4. Step 4: Simplify right side
    7,738.17x = 64,002,199.19
  5. Step 5: Solve for x
    x = 64,002,199.19/7,738.17
  6. Step 6: Final answer
    x = 8,270.97

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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.