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Finding the Fourth Proportional to 18,531, 25,573.02 and 10,147.32

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Solution

The fourth proportional to 18,531, 25,573.02 and 10,147.32 is: 14,003.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531 : 25,573.02 = 10,147.32 : x
  2. Step 2: Convert to fraction form
    18,531/25,573.02 = 10,147.32/x
  3. Step 3: Cross multiply
    18,531x = 25,573.02 × 10,147.32
  4. Step 4: Simplify right side
    18,531x = 259,497,617.31
  5. Step 5: Solve for x
    x = 259,497,617.31/18,531
  6. Step 6: Final answer
    x = 14,003.43

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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.