Home / 13,218.21-19,826.91-4,898.03

Finding the Fourth Proportional to 13,218.21, 19,826.91 and 4,898.03

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Solution

The fourth proportional to 13,218.21, 19,826.91 and 4,898.03 is: 7,346.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.21 : 19,826.91 = 4,898.03 : x
  2. Step 2: Convert to fraction form
    13,218.21/19,826.91 = 4,898.03/x
  3. Step 3: Cross multiply
    13,218.21x = 19,826.91 × 4,898.03
  4. Step 4: Simplify right side
    13,218.21x = 97,112,700.85
  5. Step 5: Solve for x
    x = 97,112,700.85/13,218.21
  6. Step 6: Final answer
    x = 7,346.89

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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.