Home / 13,419.40-20,123.62-4,056.52

Finding the Fourth Proportional to 13,419.40, 20,123.62 and 4,056.52

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Solution

The fourth proportional to 13,419.40, 20,123.62 and 4,056.52 is: 6,083.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.40 : 20,123.62 = 4,056.52 : x
  2. Step 2: Convert to fraction form
    13,419.40/20,123.62 = 4,056.52/x
  3. Step 3: Cross multiply
    13,419.40x = 20,123.62 × 4,056.52
  4. Step 4: Simplify right side
    13,419.40x = 81,631,867.00
  5. Step 5: Solve for x
    x = 81,631,867.00/13,419.40
  6. Step 6: Final answer
    x = 6,083.12

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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.