Home / 10,867.35-14,997.93-6,388.86

Finding the Fourth Proportional to 10,867.35, 14,997.93 and 6,388.86

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Solution

The fourth proportional to 10,867.35, 14,997.93 and 6,388.86 is: 8,817.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,867.35 : 14,997.93 = 6,388.86 : x
  2. Step 2: Convert to fraction form
    10,867.35/14,997.93 = 6,388.86/x
  3. Step 3: Cross multiply
    10,867.35x = 14,997.93 × 6,388.86
  4. Step 4: Simplify right side
    10,867.35x = 95,819,675.06
  5. Step 5: Solve for x
    x = 95,819,675.06/10,867.35
  6. Step 6: Final answer
    x = 8,817.21

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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.