Home / 8,370.37-11,539.56-8,111.58

Finding the Fourth Proportional to 8,370.37, 11,539.56 and 8,111.58

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Solution

The fourth proportional to 8,370.37, 11,539.56 and 8,111.58 is: 11,182.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.37 : 11,539.56 = 8,111.58 : x
  2. Step 2: Convert to fraction form
    8,370.37/11,539.56 = 8,111.58/x
  3. Step 3: Cross multiply
    8,370.37x = 11,539.56 × 8,111.58
  4. Step 4: Simplify right side
    8,370.37x = 93,604,006.41
  5. Step 5: Solve for x
    x = 93,604,006.41/8,370.37
  6. Step 6: Final answer
    x = 11,182.78

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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.