Home / 12,382.88-17,075.34-9,550.71

Finding the Fourth Proportional to 12,382.88, 17,075.34 and 9,550.71

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Solution

The fourth proportional to 12,382.88, 17,075.34 and 9,550.71 is: 13,169.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.88 : 17,075.34 = 9,550.71 : x
  2. Step 2: Convert to fraction form
    12,382.88/17,075.34 = 9,550.71/x
  3. Step 3: Cross multiply
    12,382.88x = 17,075.34 × 9,550.71
  4. Step 4: Simplify right side
    12,382.88x = 163,081,620.49
  5. Step 5: Solve for x
    x = 163,081,620.49/12,382.88
  6. Step 6: Final answer
    x = 13,169.93

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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.