Home / 12,982.56-19,495.84-8,487.04

Finding the Fourth Proportional to 12,982.56, 19,495.84 and 8,487.04

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Solution

The fourth proportional to 12,982.56, 19,495.84 and 8,487.04 is: 12,744.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.56 : 19,495.84 = 8,487.04 : x
  2. Step 2: Convert to fraction form
    12,982.56/19,495.84 = 8,487.04/x
  3. Step 3: Cross multiply
    12,982.56x = 19,495.84 × 8,487.04
  4. Step 4: Simplify right side
    12,982.56x = 165,461,973.91
  5. Step 5: Solve for x
    x = 165,461,973.91/12,982.56
  6. Step 6: Final answer
    x = 12,744.94

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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.