Home / 13,129.04-19,647.30-8,201

Finding the Fourth Proportional to 13,129.04, 19,647.30 and 8,201

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Solution

The fourth proportional to 13,129.04, 19,647.30 and 8,201 is: 12,272.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.04 : 19,647.30 = 8,201 : x
  2. Step 2: Convert to fraction form
    13,129.04/19,647.30 = 8,201/x
  3. Step 3: Cross multiply
    13,129.04x = 19,647.30 × 8,201
  4. Step 4: Simplify right side
    13,129.04x = 161,127,507.30
  5. Step 5: Solve for x
    x = 161,127,507.30/13,129.04
  6. Step 6: Final answer
    x = 12,272.60

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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.