Home / 9,729.42-13,425.84-5,480.25

Finding the Fourth Proportional to 9,729.42, 13,425.84 and 5,480.25

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Solution

The fourth proportional to 9,729.42, 13,425.84 and 5,480.25 is: 7,562.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,729.42 : 13,425.84 = 5,480.25 : x
  2. Step 2: Convert to fraction form
    9,729.42/13,425.84 = 5,480.25/x
  3. Step 3: Cross multiply
    9,729.42x = 13,425.84 × 5,480.25
  4. Step 4: Simplify right side
    9,729.42x = 73,576,959.66
  5. Step 5: Solve for x
    x = 73,576,959.66/9,729.42
  6. Step 6: Final answer
    x = 7,562.32

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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.