Home / 13,717.24-18,931.33-7,749.29

Finding the Fourth Proportional to 13,717.24, 18,931.33 and 7,749.29

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Solution

The fourth proportional to 13,717.24, 18,931.33 and 7,749.29 is: 10,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.24 : 18,931.33 = 7,749.29 : x
  2. Step 2: Convert to fraction form
    13,717.24/18,931.33 = 7,749.29/x
  3. Step 3: Cross multiply
    13,717.24x = 18,931.33 × 7,749.29
  4. Step 4: Simplify right side
    13,717.24x = 146,704,394.21
  5. Step 5: Solve for x
    x = 146,704,394.21/13,717.24
  6. Step 6: Final answer
    x = 10,694.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.