Home / 13,128.55-19,692.32-3,267.95

Finding the Fourth Proportional to 13,128.55, 19,692.32 and 3,267.95

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Solution

The fourth proportional to 13,128.55, 19,692.32 and 3,267.95 is: 4,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.55 : 19,692.32 = 3,267.95 : x
  2. Step 2: Convert to fraction form
    13,128.55/19,692.32 = 3,267.95/x
  3. Step 3: Cross multiply
    13,128.55x = 19,692.32 × 3,267.95
  4. Step 4: Simplify right side
    13,128.55x = 64,353,402.34
  5. Step 5: Solve for x
    x = 64,353,402.34/13,128.55
  6. Step 6: Final answer
    x = 4,901.79

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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.