Home / 11,692.92-16,135.98-6,387.78

Finding the Fourth Proportional to 11,692.92, 16,135.98 and 6,387.78

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Solution

The fourth proportional to 11,692.92, 16,135.98 and 6,387.78 is: 8,815.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,692.92 : 16,135.98 = 6,387.78 : x
  2. Step 2: Convert to fraction form
    11,692.92/16,135.98 = 6,387.78/x
  3. Step 3: Cross multiply
    11,692.92x = 16,135.98 × 6,387.78
  4. Step 4: Simplify right side
    11,692.92x = 103,073,090.32
  5. Step 5: Solve for x
    x = 103,073,090.32/11,692.92
  6. Step 6: Final answer
    x = 8,815.00

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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.