Home / 15,101.22-20,836.58-8,725.53

Finding the Fourth Proportional to 15,101.22, 20,836.58 and 8,725.53

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Solution

The fourth proportional to 15,101.22, 20,836.58 and 8,725.53 is: 12,039.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,101.22 : 20,836.58 = 8,725.53 : x
  2. Step 2: Convert to fraction form
    15,101.22/20,836.58 = 8,725.53/x
  3. Step 3: Cross multiply
    15,101.22x = 20,836.58 × 8,725.53
  4. Step 4: Simplify right side
    15,101.22x = 181,810,160.26
  5. Step 5: Solve for x
    x = 181,810,160.26/15,101.22
  6. Step 6: Final answer
    x = 12,039.44

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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.