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Finding the Fourth Proportional to 18,393, 25,380.59 and 10,324.81

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Solution

The fourth proportional to 18,393, 25,380.59 and 10,324.81 is: 14,247.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393 : 25,380.59 = 10,324.81 : x
  2. Step 2: Convert to fraction form
    18,393/25,380.59 = 10,324.81/x
  3. Step 3: Cross multiply
    18,393x = 25,380.59 × 10,324.81
  4. Step 4: Simplify right side
    18,393x = 262,049,717.81
  5. Step 5: Solve for x
    x = 262,049,717.81/18,393
  6. Step 6: Final answer
    x = 14,247.25

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1.5x scale

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.