Home / 13,923.63-19,214.36-7,873.78

Finding the Fourth Proportional to 13,923.63, 19,214.36 and 7,873.78

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Solution

The fourth proportional to 13,923.63, 19,214.36 and 7,873.78 is: 10,865.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.63 : 19,214.36 = 7,873.78 : x
  2. Step 2: Convert to fraction form
    13,923.63/19,214.36 = 7,873.78/x
  3. Step 3: Cross multiply
    13,923.63x = 19,214.36 × 7,873.78
  4. Step 4: Simplify right side
    13,923.63x = 151,289,719.96
  5. Step 5: Solve for x
    x = 151,289,719.96/13,923.63
  6. Step 6: Final answer
    x = 10,865.68

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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.