Home / 18,411.09-25,407.42-10,453.44

Finding the Fourth Proportional to 18,411.09, 25,407.42 and 10,453.44

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Solution

The fourth proportional to 18,411.09, 25,407.42 and 10,453.44 is: 14,425.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.09 : 25,407.42 = 10,453.44 : x
  2. Step 2: Convert to fraction form
    18,411.09/25,407.42 = 10,453.44/x
  3. Step 3: Cross multiply
    18,411.09x = 25,407.42 × 10,453.44
  4. Step 4: Simplify right side
    18,411.09x = 265,594,940.52
  5. Step 5: Solve for x
    x = 265,594,940.52/18,411.09
  6. Step 6: Final answer
    x = 14,425.81

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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.