Home / 13,265.60-19,898.40-11,806.40

Finding the Fourth Proportional to 13,265.60, 19,898.40 and 11,806.40

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Solution

The fourth proportional to 13,265.60, 19,898.40 and 11,806.40 is: 17,709.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.60 : 19,898.40 = 11,806.40 : x
  2. Step 2: Convert to fraction form
    13,265.60/19,898.40 = 11,806.40/x
  3. Step 3: Cross multiply
    13,265.60x = 19,898.40 × 11,806.40
  4. Step 4: Simplify right side
    13,265.60x = 234,928,469.76
  5. Step 5: Solve for x
    x = 234,928,469.76/13,265.60
  6. Step 6: Final answer
    x = 17,709.60

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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.