Home / 8,915.77-13,371.99-2,591.39

Finding the Fourth Proportional to 8,915.77, 13,371.99 and 2,591.39

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Solution

The fourth proportional to 8,915.77, 13,371.99 and 2,591.39 is: 3,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.77 : 13,371.99 = 2,591.39 : x
  2. Step 2: Convert to fraction form
    8,915.77/13,371.99 = 2,591.39/x
  3. Step 3: Cross multiply
    8,915.77x = 13,371.99 × 2,591.39
  4. Step 4: Simplify right side
    8,915.77x = 34,652,064.88
  5. Step 5: Solve for x
    x = 34,652,064.88/8,915.77
  6. Step 6: Final answer
    x = 3,886.60

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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.