Home / 9,128.88-13,692.78-2,554.92

Finding the Fourth Proportional to 9,128.88, 13,692.78 and 2,554.92

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Solution

The fourth proportional to 9,128.88, 13,692.78 and 2,554.92 is: 3,832.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.88 : 13,692.78 = 2,554.92 : x
  2. Step 2: Convert to fraction form
    9,128.88/13,692.78 = 2,554.92/x
  3. Step 3: Cross multiply
    9,128.88x = 13,692.78 × 2,554.92
  4. Step 4: Simplify right side
    9,128.88x = 34,983,957.48
  5. Step 5: Solve for x
    x = 34,983,957.48/9,128.88
  6. Step 6: Final answer
    x = 3,832.23

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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.