Home / 9,729.66-13,427.73-5,538.18

Finding the Fourth Proportional to 9,729.66, 13,427.73 and 5,538.18

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Solution

The fourth proportional to 9,729.66, 13,427.73 and 5,538.18 is: 7,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,729.66 : 13,427.73 = 5,538.18 : x
  2. Step 2: Convert to fraction form
    9,729.66/13,427.73 = 5,538.18/x
  3. Step 3: Cross multiply
    9,729.66x = 13,427.73 × 5,538.18
  4. Step 4: Simplify right side
    9,729.66x = 74,365,185.73
  5. Step 5: Solve for x
    x = 74,365,185.73/9,729.66
  6. Step 6: Final answer
    x = 7,643.14

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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.