Home / 8,147.63-11,244.93-5,163.74

Finding the Fourth Proportional to 8,147.63, 11,244.93 and 5,163.74

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Solution

The fourth proportional to 8,147.63, 11,244.93 and 5,163.74 is: 7,126.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.63 : 11,244.93 = 5,163.74 : x
  2. Step 2: Convert to fraction form
    8,147.63/11,244.93 = 5,163.74/x
  3. Step 3: Cross multiply
    8,147.63x = 11,244.93 × 5,163.74
  4. Step 4: Simplify right side
    8,147.63x = 58,065,894.84
  5. Step 5: Solve for x
    x = 58,065,894.84/8,147.63
  6. Step 6: Final answer
    x = 7,126.72

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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.