Home / 7,875.96-11,816.81-3,661.16

Finding the Fourth Proportional to 7,875.96, 11,816.81 and 3,661.16

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Solution

The fourth proportional to 7,875.96, 11,816.81 and 3,661.16 is: 5,493.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.96 : 11,816.81 = 3,661.16 : x
  2. Step 2: Convert to fraction form
    7,875.96/11,816.81 = 3,661.16/x
  3. Step 3: Cross multiply
    7,875.96x = 11,816.81 × 3,661.16
  4. Step 4: Simplify right side
    7,875.96x = 43,263,232.10
  5. Step 5: Solve for x
    x = 43,263,232.10/7,875.96
  6. Step 6: Final answer
    x = 5,493.07

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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.