Home / 18,879.35-26,052.84-12,165.26

Finding the Fourth Proportional to 18,879.35, 26,052.84 and 12,165.26

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Solution

The fourth proportional to 18,879.35, 26,052.84 and 12,165.26 is: 16,787.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879.35 : 26,052.84 = 12,165.26 : x
  2. Step 2: Convert to fraction form
    18,879.35/26,052.84 = 12,165.26/x
  3. Step 3: Cross multiply
    18,879.35x = 26,052.84 × 12,165.26
  4. Step 4: Simplify right side
    18,879.35x = 316,939,442.07
  5. Step 5: Solve for x
    x = 316,939,442.07/18,879.35
  6. Step 6: Final answer
    x = 16,787.63

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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.