Home / 18,373.43-25,355.78-11,203.72

Finding the Fourth Proportional to 18,373.43, 25,355.78 and 11,203.72

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Solution

The fourth proportional to 18,373.43, 25,355.78 and 11,203.72 is: 15,461.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,373.43 : 25,355.78 = 11,203.72 : x
  2. Step 2: Convert to fraction form
    18,373.43/25,355.78 = 11,203.72/x
  3. Step 3: Cross multiply
    18,373.43x = 25,355.78 × 11,203.72
  4. Step 4: Simplify right side
    18,373.43x = 284,079,059.50
  5. Step 5: Solve for x
    x = 284,079,059.50/18,373.43
  6. Step 6: Final answer
    x = 15,461.41

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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.