Home / 13,253.90-19,880.64-3,393.09

Finding the Fourth Proportional to 13,253.90, 19,880.64 and 3,393.09

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Solution

The fourth proportional to 13,253.90, 19,880.64 and 3,393.09 is: 5,089.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.90 : 19,880.64 = 3,393.09 : x
  2. Step 2: Convert to fraction form
    13,253.90/19,880.64 = 3,393.09/x
  3. Step 3: Cross multiply
    13,253.90x = 19,880.64 × 3,393.09
  4. Step 4: Simplify right side
    13,253.90x = 67,456,800.78
  5. Step 5: Solve for x
    x = 67,456,800.78/13,253.90
  6. Step 6: Final answer
    x = 5,089.58

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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.