Home / 13,764.32-20,656.62-6,276.35

Finding the Fourth Proportional to 13,764.32, 20,656.62 and 6,276.35

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Solution

The fourth proportional to 13,764.32, 20,656.62 and 6,276.35 is: 9,419.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.32 : 20,656.62 = 6,276.35 : x
  2. Step 2: Convert to fraction form
    13,764.32/20,656.62 = 6,276.35/x
  3. Step 3: Cross multiply
    13,764.32x = 20,656.62 × 6,276.35
  4. Step 4: Simplify right side
    13,764.32x = 129,648,073.65
  5. Step 5: Solve for x
    x = 129,648,073.65/13,764.32
  6. Step 6: Final answer
    x = 9,419.14

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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.