Home / 17,918.84-26,878.73-4,771.23

Finding the Fourth Proportional to 17,918.84, 26,878.73 and 4,771.23

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Solution

The fourth proportional to 17,918.84, 26,878.73 and 4,771.23 is: 7,156.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918.84 : 26,878.73 = 4,771.23 : x
  2. Step 2: Convert to fraction form
    17,918.84/26,878.73 = 4,771.23/x
  3. Step 3: Cross multiply
    17,918.84x = 26,878.73 × 4,771.23
  4. Step 4: Simplify right side
    17,918.84x = 128,244,579.08
  5. Step 5: Solve for x
    x = 128,244,579.08/17,918.84
  6. Step 6: Final answer
    x = 7,156.97

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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.