Home / 18,913.36-26,087.16-16,391.04

Finding the Fourth Proportional to 18,913.36, 26,087.16 and 16,391.04

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Solution

The fourth proportional to 18,913.36, 26,087.16 and 16,391.04 is: 22,608.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.36 : 26,087.16 = 16,391.04 : x
  2. Step 2: Convert to fraction form
    18,913.36/26,087.16 = 16,391.04/x
  3. Step 3: Cross multiply
    18,913.36x = 26,087.16 × 16,391.04
  4. Step 4: Simplify right side
    18,913.36x = 427,595,683.05
  5. Step 5: Solve for x
    x = 427,595,683.05/18,913.36
  6. Step 6: Final answer
    x = 22,608.13

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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.