Home / 9,128.15-13,692.25-2,554.39

Finding the Fourth Proportional to 9,128.15, 13,692.25 and 2,554.39

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Solution

The fourth proportional to 9,128.15, 13,692.25 and 2,554.39 is: 3,831.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.15 : 13,692.25 = 2,554.39 : x
  2. Step 2: Convert to fraction form
    9,128.15/13,692.25 = 2,554.39/x
  3. Step 3: Cross multiply
    9,128.15x = 13,692.25 × 2,554.39
  4. Step 4: Simplify right side
    9,128.15x = 34,975,346.48
  5. Step 5: Solve for x
    x = 34,975,346.48/9,128.15
  6. Step 6: Final answer
    x = 3,831.59

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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.