Home / 13,845.78-19,107.54-7,558.56

Finding the Fourth Proportional to 13,845.78, 19,107.54 and 7,558.56

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Solution

The fourth proportional to 13,845.78, 19,107.54 and 7,558.56 is: 10,431.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.78 : 19,107.54 = 7,558.56 : x
  2. Step 2: Convert to fraction form
    13,845.78/19,107.54 = 7,558.56/x
  3. Step 3: Cross multiply
    13,845.78x = 19,107.54 × 7,558.56
  4. Step 4: Simplify right side
    13,845.78x = 144,425,487.54
  5. Step 5: Solve for x
    x = 144,425,487.54/13,845.78
  6. Step 6: Final answer
    x = 10,431.01

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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.