Home / 13,698.56-20,531.31-6,668.03

Finding the Fourth Proportional to 13,698.56, 20,531.31 and 6,668.03

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Solution

The fourth proportional to 13,698.56, 20,531.31 and 6,668.03 is: 9,994.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.56 : 20,531.31 = 6,668.03 : x
  2. Step 2: Convert to fraction form
    13,698.56/20,531.31 = 6,668.03/x
  3. Step 3: Cross multiply
    13,698.56x = 20,531.31 × 6,668.03
  4. Step 4: Simplify right side
    13,698.56x = 136,903,474.35
  5. Step 5: Solve for x
    x = 136,903,474.35/13,698.56
  6. Step 6: Final answer
    x = 9,994.01

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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.