Home / 13,020.56-19,491.96-11,957.84

Finding the Fourth Proportional to 13,020.56, 19,491.96 and 11,957.84

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Solution

The fourth proportional to 13,020.56, 19,491.96 and 11,957.84 is: 17,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.56 : 19,491.96 = 11,957.84 : x
  2. Step 2: Convert to fraction form
    13,020.56/19,491.96 = 11,957.84/x
  3. Step 3: Cross multiply
    13,020.56x = 19,491.96 × 11,957.84
  4. Step 4: Simplify right side
    13,020.56x = 233,081,738.97
  5. Step 5: Solve for x
    x = 233,081,738.97/13,020.56
  6. Step 6: Final answer
    x = 17,901.05

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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.