Home / 8,087.54-11,148.10-7,409.58

Finding the Fourth Proportional to 8,087.54, 11,148.10 and 7,409.58

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Solution

The fourth proportional to 8,087.54, 11,148.10 and 7,409.58 is: 10,213.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.54 : 11,148.10 = 7,409.58 : x
  2. Step 2: Convert to fraction form
    8,087.54/11,148.10 = 7,409.58/x
  3. Step 3: Cross multiply
    8,087.54x = 11,148.10 × 7,409.58
  4. Step 4: Simplify right side
    8,087.54x = 82,602,738.80
  5. Step 5: Solve for x
    x = 82,602,738.80/8,087.54
  6. Step 6: Final answer
    x = 10,213.58

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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.