Home / 18,511.94-25,548.62-10,555.31

Finding the Fourth Proportional to 18,511.94, 25,548.62 and 10,555.31

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Solution

The fourth proportional to 18,511.94, 25,548.62 and 10,555.31 is: 14,567.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.94 : 25,548.62 = 10,555.31 : x
  2. Step 2: Convert to fraction form
    18,511.94/25,548.62 = 10,555.31/x
  3. Step 3: Cross multiply
    18,511.94x = 25,548.62 × 10,555.31
  4. Step 4: Simplify right side
    18,511.94x = 269,673,615.27
  5. Step 5: Solve for x
    x = 269,673,615.27/18,511.94
  6. Step 6: Final answer
    x = 14,567.55

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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.