Home / 9,751.36-13,455.84-5,772.80

Finding the Fourth Proportional to 9,751.36, 13,455.84 and 5,772.80

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Solution

The fourth proportional to 9,751.36, 13,455.84 and 5,772.80 is: 7,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,751.36 : 13,455.84 = 5,772.80 : x
  2. Step 2: Convert to fraction form
    9,751.36/13,455.84 = 5,772.80/x
  3. Step 3: Cross multiply
    9,751.36x = 13,455.84 × 5,772.80
  4. Step 4: Simplify right side
    9,751.36x = 77,677,873.15
  5. Step 5: Solve for x
    x = 77,677,873.15/9,751.36
  6. Step 6: Final answer
    x = 7,965.85

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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.