Home / 12,880.20-19,304.70-5,469.10

Finding the Fourth Proportional to 12,880.20, 19,304.70 and 5,469.10

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Solution

The fourth proportional to 12,880.20, 19,304.70 and 5,469.10 is: 8,197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.20 : 19,304.70 = 5,469.10 : x
  2. Step 2: Convert to fraction form
    12,880.20/19,304.70 = 5,469.10/x
  3. Step 3: Cross multiply
    12,880.20x = 19,304.70 × 5,469.10
  4. Step 4: Simplify right side
    12,880.20x = 105,579,334.77
  5. Step 5: Solve for x
    x = 105,579,334.77/12,880.20
  6. Step 6: Final answer
    x = 8,197.03

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1.5x scale

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.