Home / 12,409.47-18,617.25-6,172.43

Finding the Fourth Proportional to 12,409.47, 18,617.25 and 6,172.43

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Solution

The fourth proportional to 12,409.47, 18,617.25 and 6,172.43 is: 9,260.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409.47 : 18,617.25 = 6,172.43 : x
  2. Step 2: Convert to fraction form
    12,409.47/18,617.25 = 6,172.43/x
  3. Step 3: Cross multiply
    12,409.47x = 18,617.25 × 6,172.43
  4. Step 4: Simplify right side
    12,409.47x = 114,913,672.42
  5. Step 5: Solve for x
    x = 114,913,672.42/12,409.47
  6. Step 6: Final answer
    x = 9,260.16

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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.