Home / 15,051.80-20,772.98-11,268.30

Finding the Fourth Proportional to 15,051.80, 20,772.98 and 11,268.30

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Solution

The fourth proportional to 15,051.80, 20,772.98 and 11,268.30 is: 15,551.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.80 : 20,772.98 = 11,268.30 : x
  2. Step 2: Convert to fraction form
    15,051.80/20,772.98 = 11,268.30/x
  3. Step 3: Cross multiply
    15,051.80x = 20,772.98 × 11,268.30
  4. Step 4: Simplify right side
    15,051.80x = 234,076,170.53
  5. Step 5: Solve for x
    x = 234,076,170.53/15,051.80
  6. Step 6: Final answer
    x = 15,551.37

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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.