Home / 16,749.78-23,114.70-9,297.78

Finding the Fourth Proportional to 16,749.78, 23,114.70 and 9,297.78

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Solution

The fourth proportional to 16,749.78, 23,114.70 and 9,297.78 is: 12,830.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,749.78 : 23,114.70 = 9,297.78 : x
  2. Step 2: Convert to fraction form
    16,749.78/23,114.70 = 9,297.78/x
  3. Step 3: Cross multiply
    16,749.78x = 23,114.70 × 9,297.78
  4. Step 4: Simplify right side
    16,749.78x = 214,915,395.37
  5. Step 5: Solve for x
    x = 214,915,395.37/16,749.78
  6. Step 6: Final answer
    x = 12,830.94

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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.