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Finding the Fourth Proportional to 13,173.60, 19,750.68 and 6,240

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Solution

The fourth proportional to 13,173.60, 19,750.68 and 6,240 is: 9,355.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.60 : 19,750.68 = 6,240 : x
  2. Step 2: Convert to fraction form
    13,173.60/19,750.68 = 6,240/x
  3. Step 3: Cross multiply
    13,173.60x = 19,750.68 × 6,240
  4. Step 4: Simplify right side
    13,173.60x = 123,244,243.20
  5. Step 5: Solve for x
    x = 123,244,243.20/13,173.60
  6. Step 6: Final answer
    x = 9,355.40

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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.