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Finding the Fourth Proportional to 18,653, 25,741.22 and 10,269.32

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Solution

The fourth proportional to 18,653, 25,741.22 and 10,269.32 is: 14,171.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653 : 25,741.22 = 10,269.32 : x
  2. Step 2: Convert to fraction form
    18,653/25,741.22 = 10,269.32/x
  3. Step 3: Cross multiply
    18,653x = 25,741.22 × 10,269.32
  4. Step 4: Simplify right side
    18,653x = 264,344,825.37
  5. Step 5: Solve for x
    x = 264,344,825.37/18,653
  6. Step 6: Final answer
    x = 14,171.71

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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.