Home / 13,880.92-19,150.96-7,908.36

Finding the Fourth Proportional to 13,880.92, 19,150.96 and 7,908.36

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Solution

The fourth proportional to 13,880.92, 19,150.96 and 7,908.36 is: 10,910.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.92 : 19,150.96 = 7,908.36 : x
  2. Step 2: Convert to fraction form
    13,880.92/19,150.96 = 7,908.36/x
  3. Step 3: Cross multiply
    13,880.92x = 19,150.96 × 7,908.36
  4. Step 4: Simplify right side
    13,880.92x = 151,452,686.03
  5. Step 5: Solve for x
    x = 151,452,686.03/13,880.92
  6. Step 6: Final answer
    x = 10,910.85

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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.