Home / 15,753.06-21,735.81-11,975.22

Finding the Fourth Proportional to 15,753.06, 21,735.81 and 11,975.22

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Solution

The fourth proportional to 15,753.06, 21,735.81 and 11,975.22 is: 16,523.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,753.06 : 21,735.81 = 11,975.22 : x
  2. Step 2: Convert to fraction form
    15,753.06/21,735.81 = 11,975.22/x
  3. Step 3: Cross multiply
    15,753.06x = 21,735.81 × 11,975.22
  4. Step 4: Simplify right side
    15,753.06x = 260,291,106.63
  5. Step 5: Solve for x
    x = 260,291,106.63/15,753.06
  6. Step 6: Final answer
    x = 16,523.21

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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.