Home / 7,983.77-11,913.21-7,153.58

Finding the Fourth Proportional to 7,983.77, 11,913.21 and 7,153.58

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Solution

The fourth proportional to 7,983.77, 11,913.21 and 7,153.58 is: 10,674.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.77 : 11,913.21 = 7,153.58 : x
  2. Step 2: Convert to fraction form
    7,983.77/11,913.21 = 7,153.58/x
  3. Step 3: Cross multiply
    7,983.77x = 11,913.21 × 7,153.58
  4. Step 4: Simplify right side
    7,983.77x = 85,222,130.57
  5. Step 5: Solve for x
    x = 85,222,130.57/7,983.77
  6. Step 6: Final answer
    x = 10,674.43

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.