Home / 8,120.84-11,206.54-4,583.78

Finding the Fourth Proportional to 8,120.84, 11,206.54 and 4,583.78

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Solution

The fourth proportional to 8,120.84, 11,206.54 and 4,583.78 is: 6,325.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.84 : 11,206.54 = 4,583.78 : x
  2. Step 2: Convert to fraction form
    8,120.84/11,206.54 = 4,583.78/x
  3. Step 3: Cross multiply
    8,120.84x = 11,206.54 × 4,583.78
  4. Step 4: Simplify right side
    8,120.84x = 51,368,313.92
  5. Step 5: Solve for x
    x = 51,368,313.92/8,120.84
  6. Step 6: Final answer
    x = 6,325.49

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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.