Home / 8,761.41-13,109.17-5,238.45

Finding the Fourth Proportional to 8,761.41, 13,109.17 and 5,238.45

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Solution

The fourth proportional to 8,761.41, 13,109.17 and 5,238.45 is: 7,837.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.41 : 13,109.17 = 5,238.45 : x
  2. Step 2: Convert to fraction form
    8,761.41/13,109.17 = 5,238.45/x
  3. Step 3: Cross multiply
    8,761.41x = 13,109.17 × 5,238.45
  4. Step 4: Simplify right side
    8,761.41x = 68,671,731.59
  5. Step 5: Solve for x
    x = 68,671,731.59/8,761.41
  6. Step 6: Final answer
    x = 7,837.98

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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.