Home / 11,520.77-17,283.42-5,280.94

Finding the Fourth Proportional to 11,520.77, 17,283.42 and 5,280.94

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Solution

The fourth proportional to 11,520.77, 17,283.42 and 5,280.94 is: 7,922.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.77 : 17,283.42 = 5,280.94 : x
  2. Step 2: Convert to fraction form
    11,520.77/17,283.42 = 5,280.94/x
  3. Step 3: Cross multiply
    11,520.77x = 17,283.42 × 5,280.94
  4. Step 4: Simplify right side
    11,520.77x = 91,272,660.81
  5. Step 5: Solve for x
    x = 91,272,660.81/11,520.77
  6. Step 6: Final answer
    x = 7,922.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.