Home / 13,991.92-19,308.84-7,704.30

Finding the Fourth Proportional to 13,991.92, 19,308.84 and 7,704.30

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Solution

The fourth proportional to 13,991.92, 19,308.84 and 7,704.30 is: 10,631.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.92 : 19,308.84 = 7,704.30 : x
  2. Step 2: Convert to fraction form
    13,991.92/19,308.84 = 7,704.30/x
  3. Step 3: Cross multiply
    13,991.92x = 19,308.84 × 7,704.30
  4. Step 4: Simplify right side
    13,991.92x = 148,761,096.01
  5. Step 5: Solve for x
    x = 148,761,096.01/13,991.92
  6. Step 6: Final answer
    x = 10,631.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.