Home / 9,253.87-12,770.49-5,275.06

Finding the Fourth Proportional to 9,253.87, 12,770.49 and 5,275.06

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Solution

The fourth proportional to 9,253.87, 12,770.49 and 5,275.06 is: 7,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,253.87 : 12,770.49 = 5,275.06 : x
  2. Step 2: Convert to fraction form
    9,253.87/12,770.49 = 5,275.06/x
  3. Step 3: Cross multiply
    9,253.87x = 12,770.49 × 5,275.06
  4. Step 4: Simplify right side
    9,253.87x = 67,365,100.98
  5. Step 5: Solve for x
    x = 67,365,100.98/9,253.87
  6. Step 6: Final answer
    x = 7,279.67

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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.