Home / 14,258.09-21,387.15-3,869.84

Finding the Fourth Proportional to 14,258.09, 21,387.15 and 3,869.84

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Solution

The fourth proportional to 14,258.09, 21,387.15 and 3,869.84 is: 5,804.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258.09 : 21,387.15 = 3,869.84 : x
  2. Step 2: Convert to fraction form
    14,258.09/21,387.15 = 3,869.84/x
  3. Step 3: Cross multiply
    14,258.09x = 21,387.15 × 3,869.84
  4. Step 4: Simplify right side
    14,258.09x = 82,764,902.02
  5. Step 5: Solve for x
    x = 82,764,902.02/14,258.09
  6. Step 6: Final answer
    x = 5,804.77

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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.