Home / 10,679.31-15,994.35-7,394.73

Finding the Fourth Proportional to 10,679.31, 15,994.35 and 7,394.73

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Solution

The fourth proportional to 10,679.31, 15,994.35 and 7,394.73 is: 11,075.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,679.31 : 15,994.35 = 7,394.73 : x
  2. Step 2: Convert to fraction form
    10,679.31/15,994.35 = 7,394.73/x
  3. Step 3: Cross multiply
    10,679.31x = 15,994.35 × 7,394.73
  4. Step 4: Simplify right side
    10,679.31x = 118,273,899.78
  5. Step 5: Solve for x
    x = 118,273,899.78/10,679.31
  6. Step 6: Final answer
    x = 11,075.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.