Home / 13,795.89-20,695.77-5,476.78

Finding the Fourth Proportional to 13,795.89, 20,695.77 and 5,476.78

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Solution

The fourth proportional to 13,795.89, 20,695.77 and 5,476.78 is: 8,215.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.89 : 20,695.77 = 5,476.78 : x
  2. Step 2: Convert to fraction form
    13,795.89/20,695.77 = 5,476.78/x
  3. Step 3: Cross multiply
    13,795.89x = 20,695.77 × 5,476.78
  4. Step 4: Simplify right side
    13,795.89x = 113,346,205.09
  5. Step 5: Solve for x
    x = 113,346,205.09/13,795.89
  6. Step 6: Final answer
    x = 8,215.94

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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.