Home / 9,966.80-14,939.94-4,422.75

Finding the Fourth Proportional to 9,966.80, 14,939.94 and 4,422.75

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Solution

The fourth proportional to 9,966.80, 14,939.94 and 4,422.75 is: 6,629.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.80 : 14,939.94 = 4,422.75 : x
  2. Step 2: Convert to fraction form
    9,966.80/14,939.94 = 4,422.75/x
  3. Step 3: Cross multiply
    9,966.80x = 14,939.94 × 4,422.75
  4. Step 4: Simplify right side
    9,966.80x = 66,075,619.64
  5. Step 5: Solve for x
    x = 66,075,619.64/9,966.80
  6. Step 6: Final answer
    x = 6,629.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.