Home / 13,904.73-19,171.31-9,181.53

Finding the Fourth Proportional to 13,904.73, 19,171.31 and 9,181.53

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Solution

The fourth proportional to 13,904.73, 19,171.31 and 9,181.53 is: 12,659.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.73 : 19,171.31 = 9,181.53 : x
  2. Step 2: Convert to fraction form
    13,904.73/19,171.31 = 9,181.53/x
  3. Step 3: Cross multiply
    13,904.73x = 19,171.31 × 9,181.53
  4. Step 4: Simplify right side
    13,904.73x = 176,021,912.00
  5. Step 5: Solve for x
    x = 176,021,912.00/13,904.73
  6. Step 6: Final answer
    x = 12,659.14

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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.