Home / 8,153.76-11,257.20-5,173.92

Finding the Fourth Proportional to 8,153.76, 11,257.20 and 5,173.92

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Solution

The fourth proportional to 8,153.76, 11,257.20 and 5,173.92 is: 7,143.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,153.76 : 11,257.20 = 5,173.92 : x
  2. Step 2: Convert to fraction form
    8,153.76/11,257.20 = 5,173.92/x
  3. Step 3: Cross multiply
    8,153.76x = 11,257.20 × 5,173.92
  4. Step 4: Simplify right side
    8,153.76x = 58,243,852.22
  5. Step 5: Solve for x
    x = 58,243,852.22/8,153.76
  6. Step 6: Final answer
    x = 7,143.19

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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.