Home / 13,845.87-19,107.36-7,558.38

Finding the Fourth Proportional to 13,845.87, 19,107.36 and 7,558.38

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Solution

The fourth proportional to 13,845.87, 19,107.36 and 7,558.38 is: 10,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.87 : 19,107.36 = 7,558.38 : x
  2. Step 2: Convert to fraction form
    13,845.87/19,107.36 = 7,558.38/x
  3. Step 3: Cross multiply
    13,845.87x = 19,107.36 × 7,558.38
  4. Step 4: Simplify right side
    13,845.87x = 144,420,687.68
  5. Step 5: Solve for x
    x = 144,420,687.68/13,845.87
  6. Step 6: Final answer
    x = 10,430.60

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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.