Home / 16,812.79-23,201.43-9,739.87

Finding the Fourth Proportional to 16,812.79, 23,201.43 and 9,739.87

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Solution

The fourth proportional to 16,812.79, 23,201.43 and 9,739.87 is: 13,440.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,812.79 : 23,201.43 = 9,739.87 : x
  2. Step 2: Convert to fraction form
    16,812.79/23,201.43 = 9,739.87/x
  3. Step 3: Cross multiply
    16,812.79x = 23,201.43 × 9,739.87
  4. Step 4: Simplify right side
    16,812.79x = 225,978,912.01
  5. Step 5: Solve for x
    x = 225,978,912.01/16,812.79
  6. Step 6: Final answer
    x = 13,440.89

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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.