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Finding the Fourth Proportional to 7,886.76, 11,829.60 and 2,692.52

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Solution

The fourth proportional to 7,886.76, 11,829.60 and 2,692.52 is: 4,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.76 : 11,829.60 = 2,692.52 : x
  2. Step 2: Convert to fraction form
    7,886.76/11,829.60 = 2,692.52/x
  3. Step 3: Cross multiply
    7,886.76x = 11,829.60 × 2,692.52
  4. Step 4: Simplify right side
    7,886.76x = 31,851,434.59
  5. Step 5: Solve for x
    x = 31,851,434.59/7,886.76
  6. Step 6: Final answer
    x = 4,038.60

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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.