Home / 11,255.17-15,539.67-7,007.94

Finding the Fourth Proportional to 11,255.17, 15,539.67 and 7,007.94

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Solution

The fourth proportional to 11,255.17, 15,539.67 and 7,007.94 is: 9,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.17 : 15,539.67 = 7,007.94 : x
  2. Step 2: Convert to fraction form
    11,255.17/15,539.67 = 7,007.94/x
  3. Step 3: Cross multiply
    11,255.17x = 15,539.67 × 7,007.94
  4. Step 4: Simplify right side
    11,255.17x = 108,901,074.98
  5. Step 5: Solve for x
    x = 108,901,074.98/11,255.17
  6. Step 6: Final answer
    x = 9,675.65

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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.