Home / 18,913.35-26,088.80-11,745.75

Finding the Fourth Proportional to 18,913.35, 26,088.80 and 11,745.75

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Solution

The fourth proportional to 18,913.35, 26,088.80 and 11,745.75 is: 16,201.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.35 : 26,088.80 = 11,745.75 : x
  2. Step 2: Convert to fraction form
    18,913.35/26,088.80 = 11,745.75/x
  3. Step 3: Cross multiply
    18,913.35x = 26,088.80 × 11,745.75
  4. Step 4: Simplify right side
    18,913.35x = 306,432,463.87
  5. Step 5: Solve for x
    x = 306,432,463.87/18,913.35
  6. Step 6: Final answer
    x = 16,201.91

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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.