Home / 12,741.74-17,583-7,076.85

Finding the Fourth Proportional to 12,741.74, 17,583 and 7,076.85

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Solution

The fourth proportional to 12,741.74, 17,583 and 7,076.85 is: 9,765.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.74 : 17,583 = 7,076.85 : x
  2. Step 2: Convert to fraction form
    12,741.74/17,583 = 7,076.85/x
  3. Step 3: Cross multiply
    12,741.74x = 17,583 × 7,076.85
  4. Step 4: Simplify right side
    12,741.74x = 124,432,253.55
  5. Step 5: Solve for x
    x = 124,432,253.55/12,741.74
  6. Step 6: Final answer
    x = 9,765.72

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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.