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Finding the Fourth Proportional to 13,099.50, 19,642.86 and 6,529.50

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Solution

The fourth proportional to 13,099.50, 19,642.86 and 6,529.50 is: 9,791.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,099.50 : 19,642.86 = 6,529.50 : x
  2. Step 2: Convert to fraction form
    13,099.50/19,642.86 = 6,529.50/x
  3. Step 3: Cross multiply
    13,099.50x = 19,642.86 × 6,529.50
  4. Step 4: Simplify right side
    13,099.50x = 128,258,054.37
  5. Step 5: Solve for x
    x = 128,258,054.37/13,099.50
  6. Step 6: Final answer
    x = 9,791.06

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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.