Home / 13,129.70-19,695.45-3,769.00

Finding the Fourth Proportional to 13,129.70, 19,695.45 and 3,769.00

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Solution

The fourth proportional to 13,129.70, 19,695.45 and 3,769.00 is: 5,653.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.70 : 19,695.45 = 3,769.00 : x
  2. Step 2: Convert to fraction form
    13,129.70/19,695.45 = 3,769.00/x
  3. Step 3: Cross multiply
    13,129.70x = 19,695.45 × 3,769.00
  4. Step 4: Simplify right side
    13,129.70x = 74,232,160.74
  5. Step 5: Solve for x
    x = 74,232,160.74/13,129.70
  6. Step 6: Final answer
    x = 5,653.76

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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.