Home / 11,948.40-17,912.16-5,705.28

Finding the Fourth Proportional to 11,948.40, 17,912.16 and 5,705.28

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Solution

The fourth proportional to 11,948.40, 17,912.16 and 5,705.28 is: 8,552.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.40 : 17,912.16 = 5,705.28 : x
  2. Step 2: Convert to fraction form
    11,948.40/17,912.16 = 5,705.28/x
  3. Step 3: Cross multiply
    11,948.40x = 17,912.16 × 5,705.28
  4. Step 4: Simplify right side
    11,948.40x = 102,193,888.20
  5. Step 5: Solve for x
    x = 102,193,888.20/11,948.40
  6. Step 6: Final answer
    x = 8,552.93

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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.