Home / 8,558.92-11,812.69-5,156.31

Finding the Fourth Proportional to 8,558.92, 11,812.69 and 5,156.31

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Solution

The fourth proportional to 8,558.92, 11,812.69 and 5,156.31 is: 7,116.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.92 : 11,812.69 = 5,156.31 : x
  2. Step 2: Convert to fraction form
    8,558.92/11,812.69 = 5,156.31/x
  3. Step 3: Cross multiply
    8,558.92x = 11,812.69 × 5,156.31
  4. Step 4: Simplify right side
    8,558.92x = 60,909,846.87
  5. Step 5: Solve for x
    x = 60,909,846.87/8,558.92
  6. Step 6: Final answer
    x = 7,116.54

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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.