Home / 18,438.44-25,448.16-10,886.66

Finding the Fourth Proportional to 18,438.44, 25,448.16 and 10,886.66

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Solution

The fourth proportional to 18,438.44, 25,448.16 and 10,886.66 is: 15,025.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.44 : 25,448.16 = 10,886.66 : x
  2. Step 2: Convert to fraction form
    18,438.44/25,448.16 = 10,886.66/x
  3. Step 3: Cross multiply
    18,438.44x = 25,448.16 × 10,886.66
  4. Step 4: Simplify right side
    18,438.44x = 277,045,465.55
  5. Step 5: Solve for x
    x = 277,045,465.55/18,438.44
  6. Step 6: Final answer
    x = 15,025.43

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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.