Home / 18,631.44-25,712.64-10,248.48

Finding the Fourth Proportional to 18,631.44, 25,712.64 and 10,248.48

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Solution

The fourth proportional to 18,631.44, 25,712.64 and 10,248.48 is: 14,143.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.44 : 25,712.64 = 10,248.48 : x
  2. Step 2: Convert to fraction form
    18,631.44/25,712.64 = 10,248.48/x
  3. Step 3: Cross multiply
    18,631.44x = 25,712.64 × 10,248.48
  4. Step 4: Simplify right side
    18,631.44x = 263,515,476.79
  5. Step 5: Solve for x
    x = 263,515,476.79/18,631.44
  6. Step 6: Final answer
    x = 14,143.59

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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.