Home / 7,111.64-10,672.70-5,741.36

Finding the Fourth Proportional to 7,111.64, 10,672.70 and 5,741.36

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Solution

The fourth proportional to 7,111.64, 10,672.70 and 5,741.36 is: 8,616.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.64 : 10,672.70 = 5,741.36 : x
  2. Step 2: Convert to fraction form
    7,111.64/10,672.70 = 5,741.36/x
  3. Step 3: Cross multiply
    7,111.64x = 10,672.70 × 5,741.36
  4. Step 4: Simplify right side
    7,111.64x = 61,275,812.87
  5. Step 5: Solve for x
    x = 61,275,812.87/7,111.64
  6. Step 6: Final answer
    x = 8,616.27

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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.