Home / 13,825.88-19,079.84-7,538.38

Finding the Fourth Proportional to 13,825.88, 19,079.84 and 7,538.38

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Solution

The fourth proportional to 13,825.88, 19,079.84 and 7,538.38 is: 10,403.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.88 : 19,079.84 = 7,538.38 : x
  2. Step 2: Convert to fraction form
    13,825.88/19,079.84 = 7,538.38/x
  3. Step 3: Cross multiply
    13,825.88x = 19,079.84 × 7,538.38
  4. Step 4: Simplify right side
    13,825.88x = 143,831,084.26
  5. Step 5: Solve for x
    x = 143,831,084.26/13,825.88
  6. Step 6: Final answer
    x = 10,403.03

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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.