Home / 20,698.06-28,563.69-11,266.69

Finding the Fourth Proportional to 20,698.06, 28,563.69 and 11,266.69

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Solution

The fourth proportional to 20,698.06, 28,563.69 and 11,266.69 is: 15,548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.06 : 28,563.69 = 11,266.69 : x
  2. Step 2: Convert to fraction form
    20,698.06/28,563.69 = 11,266.69/x
  3. Step 3: Cross multiply
    20,698.06x = 28,563.69 × 11,266.69
  4. Step 4: Simplify right side
    20,698.06x = 321,818,240.49
  5. Step 5: Solve for x
    x = 321,818,240.49/20,698.06
  6. Step 6: Final answer
    x = 15,548.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.