Home / 8,495.81-11,722.33-5,138.56

Finding the Fourth Proportional to 8,495.81, 11,722.33 and 5,138.56

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Solution

The fourth proportional to 8,495.81, 11,722.33 and 5,138.56 is: 7,090.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,495.81 : 11,722.33 = 5,138.56 : x
  2. Step 2: Convert to fraction form
    8,495.81/11,722.33 = 5,138.56/x
  3. Step 3: Cross multiply
    8,495.81x = 11,722.33 × 5,138.56
  4. Step 4: Simplify right side
    8,495.81x = 60,235,896.04
  5. Step 5: Solve for x
    x = 60,235,896.04/8,495.81
  6. Step 6: Final answer
    x = 7,090.07

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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.