Home / 8,674.20-11,969.49-4,897.57

Finding the Fourth Proportional to 8,674.20, 11,969.49 and 4,897.57

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Solution

The fourth proportional to 8,674.20, 11,969.49 and 4,897.57 is: 6,758.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.20 : 11,969.49 = 4,897.57 : x
  2. Step 2: Convert to fraction form
    8,674.20/11,969.49 = 4,897.57/x
  3. Step 3: Cross multiply
    8,674.20x = 11,969.49 × 4,897.57
  4. Step 4: Simplify right side
    8,674.20x = 58,621,415.14
  5. Step 5: Solve for x
    x = 58,621,415.14/8,674.20
  6. Step 6: Final answer
    x = 6,758.14

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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.