Home / 15,750.54-21,735.73-8,676.98

Finding the Fourth Proportional to 15,750.54, 21,735.73 and 8,676.98

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Solution

The fourth proportional to 15,750.54, 21,735.73 and 8,676.98 is: 11,974.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,750.54 : 21,735.73 = 8,676.98 : x
  2. Step 2: Convert to fraction form
    15,750.54/21,735.73 = 8,676.98/x
  3. Step 3: Cross multiply
    15,750.54x = 21,735.73 × 8,676.98
  4. Step 4: Simplify right side
    15,750.54x = 188,600,494.50
  5. Step 5: Solve for x
    x = 188,600,494.50/15,750.54
  6. Step 6: Final answer
    x = 11,974.22

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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.