Home / 13,374.96-20,051.52-7,814.64

Finding the Fourth Proportional to 13,374.96, 20,051.52 and 7,814.64

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Solution

The fourth proportional to 13,374.96, 20,051.52 and 7,814.64 is: 11,715.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,374.96 : 20,051.52 = 7,814.64 : x
  2. Step 2: Convert to fraction form
    13,374.96/20,051.52 = 7,814.64/x
  3. Step 3: Cross multiply
    13,374.96x = 20,051.52 × 7,814.64
  4. Step 4: Simplify right side
    13,374.96x = 156,695,410.25
  5. Step 5: Solve for x
    x = 156,695,410.25/13,374.96
  6. Step 6: Final answer
    x = 11,715.58

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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.