Home / 18,813.44-25,943.16-13,146.12

Finding the Fourth Proportional to 18,813.44, 25,943.16 and 13,146.12

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Solution

The fourth proportional to 18,813.44, 25,943.16 and 13,146.12 is: 18,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,813.44 : 25,943.16 = 13,146.12 : x
  2. Step 2: Convert to fraction form
    18,813.44/25,943.16 = 13,146.12/x
  3. Step 3: Cross multiply
    18,813.44x = 25,943.16 × 13,146.12
  4. Step 4: Simplify right side
    18,813.44x = 341,051,846.55
  5. Step 5: Solve for x
    x = 341,051,846.55/18,813.44
  6. Step 6: Final answer
    x = 18,128.10

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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.