Home / 8,775.41-13,139.97-5,257.07

Finding the Fourth Proportional to 8,775.41, 13,139.97 and 5,257.07

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Solution

The fourth proportional to 8,775.41, 13,139.97 and 5,257.07 is: 7,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.41 : 13,139.97 = 5,257.07 : x
  2. Step 2: Convert to fraction form
    8,775.41/13,139.97 = 5,257.07/x
  3. Step 3: Cross multiply
    8,775.41x = 13,139.97 × 5,257.07
  4. Step 4: Simplify right side
    8,775.41x = 69,077,705.95
  5. Step 5: Solve for x
    x = 69,077,705.95/8,775.41
  6. Step 6: Final answer
    x = 7,871.74

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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.