Home / 13,657.77-20,453.85-7,796.61

Finding the Fourth Proportional to 13,657.77, 20,453.85 and 7,796.61

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Solution

The fourth proportional to 13,657.77, 20,453.85 and 7,796.61 is: 11,676.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,657.77 : 20,453.85 = 7,796.61 : x
  2. Step 2: Convert to fraction form
    13,657.77/20,453.85 = 7,796.61/x
  3. Step 3: Cross multiply
    13,657.77x = 20,453.85 × 7,796.61
  4. Step 4: Simplify right side
    13,657.77x = 159,470,691.45
  5. Step 5: Solve for x
    x = 159,470,691.45/13,657.77
  6. Step 6: Final answer
    x = 11,676.19

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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.