Home / 15,657.03-21,606.72-8,583.90

Finding the Fourth Proportional to 15,657.03, 21,606.72 and 8,583.90

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Solution

The fourth proportional to 15,657.03, 21,606.72 and 8,583.90 is: 11,845.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.03 : 21,606.72 = 8,583.90 : x
  2. Step 2: Convert to fraction form
    15,657.03/21,606.72 = 8,583.90/x
  3. Step 3: Cross multiply
    15,657.03x = 21,606.72 × 8,583.90
  4. Step 4: Simplify right side
    15,657.03x = 185,469,923.81
  5. Step 5: Solve for x
    x = 185,469,923.81/15,657.03
  6. Step 6: Final answer
    x = 11,845.79

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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.