Home / 13,319.20-19,880.03-11,532.27

Finding the Fourth Proportional to 13,319.20, 19,880.03 and 11,532.27

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Solution

The fourth proportional to 13,319.20, 19,880.03 and 11,532.27 is: 17,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.20 : 19,880.03 = 11,532.27 : x
  2. Step 2: Convert to fraction form
    13,319.20/19,880.03 = 11,532.27/x
  3. Step 3: Cross multiply
    13,319.20x = 19,880.03 × 11,532.27
  4. Step 4: Simplify right side
    13,319.20x = 229,261,873.57
  5. Step 5: Solve for x
    x = 229,261,873.57/13,319.20
  6. Step 6: Final answer
    x = 17,212.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.