Home / 9,128.90-13,692.14-3,580.76

Finding the Fourth Proportional to 9,128.90, 13,692.14 and 3,580.76

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Solution

The fourth proportional to 9,128.90, 13,692.14 and 3,580.76 is: 5,370.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.90 : 13,692.14 = 3,580.76 : x
  2. Step 2: Convert to fraction form
    9,128.90/13,692.14 = 3,580.76/x
  3. Step 3: Cross multiply
    9,128.90x = 13,692.14 × 3,580.76
  4. Step 4: Simplify right side
    9,128.90x = 49,028,219.96
  5. Step 5: Solve for x
    x = 49,028,219.96/9,128.90
  6. Step 6: Final answer
    x = 5,370.66

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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.