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Finding the Fourth Proportional to 13,170, 18,170 and 7,504.08

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Solution

The fourth proportional to 13,170, 18,170 and 7,504.08 is: 10,353.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170 : 18,170 = 7,504.08 : x
  2. Step 2: Convert to fraction form
    13,170/18,170 = 7,504.08/x
  3. Step 3: Cross multiply
    13,170x = 18,170 × 7,504.08
  4. Step 4: Simplify right side
    13,170x = 136,349,133.60
  5. Step 5: Solve for x
    x = 136,349,133.60/13,170
  6. Step 6: Final answer
    x = 10,353.01

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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.