Home / 13,972.69-20,959.09-13,271.94

Finding the Fourth Proportional to 13,972.69, 20,959.09 and 13,271.94

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Solution

The fourth proportional to 13,972.69, 20,959.09 and 13,271.94 is: 19,907.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,972.69 : 20,959.09 = 13,271.94 : x
  2. Step 2: Convert to fraction form
    13,972.69/20,959.09 = 13,271.94/x
  3. Step 3: Cross multiply
    13,972.69x = 20,959.09 × 13,271.94
  4. Step 4: Simplify right side
    13,972.69x = 278,167,751.75
  5. Step 5: Solve for x
    x = 278,167,751.75/13,972.69
  6. Step 6: Final answer
    x = 19,907.96

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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.