Home / 8,157.06-11,255.67-5,167.62

Finding the Fourth Proportional to 8,157.06, 11,255.67 and 5,167.62

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Solution

The fourth proportional to 8,157.06, 11,255.67 and 5,167.62 is: 7,130.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.06 : 11,255.67 = 5,167.62 : x
  2. Step 2: Convert to fraction form
    8,157.06/11,255.67 = 5,167.62/x
  3. Step 3: Cross multiply
    8,157.06x = 11,255.67 × 5,167.62
  4. Step 4: Simplify right side
    8,157.06x = 58,165,025.41
  5. Step 5: Solve for x
    x = 58,165,025.41/8,157.06
  6. Step 6: Final answer
    x = 7,130.64

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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.