Home / 8,140.43-11,234.83-4,603.57

Finding the Fourth Proportional to 8,140.43, 11,234.83 and 4,603.57

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Solution

The fourth proportional to 8,140.43, 11,234.83 and 4,603.57 is: 6,353.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,140.43 : 11,234.83 = 4,603.57 : x
  2. Step 2: Convert to fraction form
    8,140.43/11,234.83 = 4,603.57/x
  3. Step 3: Cross multiply
    8,140.43x = 11,234.83 × 4,603.57
  4. Step 4: Simplify right side
    8,140.43x = 51,720,326.34
  5. Step 5: Solve for x
    x = 51,720,326.34/8,140.43
  6. Step 6: Final answer
    x = 6,353.51

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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.