Home / 17,783.10-26,668.89-9,889.38

Finding the Fourth Proportional to 17,783.10, 26,668.89 and 9,889.38

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Solution

The fourth proportional to 17,783.10, 26,668.89 and 9,889.38 is: 14,830.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,783.10 : 26,668.89 = 9,889.38 : x
  2. Step 2: Convert to fraction form
    17,783.10/26,668.89 = 9,889.38/x
  3. Step 3: Cross multiply
    17,783.10x = 26,668.89 × 9,889.38
  4. Step 4: Simplify right side
    17,783.10x = 263,738,787.39
  5. Step 5: Solve for x
    x = 263,738,787.39/17,783.10
  6. Step 6: Final answer
    x = 14,830.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.