Home / 14,243.76-21,365.37-3,855.51

Finding the Fourth Proportional to 14,243.76, 21,365.37 and 3,855.51

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Solution

The fourth proportional to 14,243.76, 21,365.37 and 3,855.51 is: 5,783.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.76 : 21,365.37 = 3,855.51 : x
  2. Step 2: Convert to fraction form
    14,243.76/21,365.37 = 3,855.51/x
  3. Step 3: Cross multiply
    14,243.76x = 21,365.37 × 3,855.51
  4. Step 4: Simplify right side
    14,243.76x = 82,374,397.69
  5. Step 5: Solve for x
    x = 82,374,397.69/14,243.76
  6. Step 6: Final answer
    x = 5,783.19

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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.