Home / 8,113.67-11,195.09-5,280.74

Finding the Fourth Proportional to 8,113.67, 11,195.09 and 5,280.74

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Solution

The fourth proportional to 8,113.67, 11,195.09 and 5,280.74 is: 7,286.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,113.67 : 11,195.09 = 5,280.74 : x
  2. Step 2: Convert to fraction form
    8,113.67/11,195.09 = 5,280.74/x
  3. Step 3: Cross multiply
    8,113.67x = 11,195.09 × 5,280.74
  4. Step 4: Simplify right side
    8,113.67x = 59,118,359.57
  5. Step 5: Solve for x
    x = 59,118,359.57/8,113.67
  6. Step 6: Final answer
    x = 7,286.27

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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.