Home / 12,380.07-18,573.18-6,143.03

Finding the Fourth Proportional to 12,380.07, 18,573.18 and 6,143.03

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Solution

The fourth proportional to 12,380.07, 18,573.18 and 6,143.03 is: 9,216.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,380.07 : 18,573.18 = 6,143.03 : x
  2. Step 2: Convert to fraction form
    12,380.07/18,573.18 = 6,143.03/x
  3. Step 3: Cross multiply
    12,380.07x = 18,573.18 × 6,143.03
  4. Step 4: Simplify right side
    12,380.07x = 114,095,601.94
  5. Step 5: Solve for x
    x = 114,095,601.94/12,380.07
  6. Step 6: Final answer
    x = 9,216.07

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1.5x scale

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.