Home / 13,469.79-18,588.66-7,804.77

Finding the Fourth Proportional to 13,469.79, 18,588.66 and 7,804.77

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Solution

The fourth proportional to 13,469.79, 18,588.66 and 7,804.77 is: 10,770.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,469.79 : 18,588.66 = 7,804.77 : x
  2. Step 2: Convert to fraction form
    13,469.79/18,588.66 = 7,804.77/x
  3. Step 3: Cross multiply
    13,469.79x = 18,588.66 × 7,804.77
  4. Step 4: Simplify right side
    13,469.79x = 145,080,083.94
  5. Step 5: Solve for x
    x = 145,080,083.94/13,469.79
  6. Step 6: Final answer
    x = 10,770.78

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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.