Home / 13,826.70-20,676.47-10,319.00

Finding the Fourth Proportional to 13,826.70, 20,676.47 and 10,319.00

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Solution

The fourth proportional to 13,826.70, 20,676.47 and 10,319.00 is: 15,431.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.70 : 20,676.47 = 10,319.00 : x
  2. Step 2: Convert to fraction form
    13,826.70/20,676.47 = 10,319.00/x
  3. Step 3: Cross multiply
    13,826.70x = 20,676.47 × 10,319.00
  4. Step 4: Simplify right side
    13,826.70x = 213,360,338.95
  5. Step 5: Solve for x
    x = 213,360,338.95/13,826.70
  6. Step 6: Final answer
    x = 15,431.04

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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.