Home / 18,372.43-25,354.40-11,202.72

Finding the Fourth Proportional to 18,372.43, 25,354.40 and 11,202.72

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Solution

The fourth proportional to 18,372.43, 25,354.40 and 11,202.72 is: 15,460.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,372.43 : 25,354.40 = 11,202.72 : x
  2. Step 2: Convert to fraction form
    18,372.43/25,354.40 = 11,202.72/x
  3. Step 3: Cross multiply
    18,372.43x = 25,354.40 × 11,202.72
  4. Step 4: Simplify right side
    18,372.43x = 284,038,089.19
  5. Step 5: Solve for x
    x = 284,038,089.19/18,372.43
  6. Step 6: Final answer
    x = 15,460.02

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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.