Home / 13,826.16-20,714.40-7,579.44

Finding the Fourth Proportional to 13,826.16, 20,714.40 and 7,579.44

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Solution

The fourth proportional to 13,826.16, 20,714.40 and 7,579.44 is: 11,355.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.16 : 20,714.40 = 7,579.44 : x
  2. Step 2: Convert to fraction form
    13,826.16/20,714.40 = 7,579.44/x
  3. Step 3: Cross multiply
    13,826.16x = 20,714.40 × 7,579.44
  4. Step 4: Simplify right side
    13,826.16x = 157,003,551.94
  5. Step 5: Solve for x
    x = 157,003,551.94/13,826.16
  6. Step 6: Final answer
    x = 11,355.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.