Home / 11,160.36-15,401.06-7,181.46

Finding the Fourth Proportional to 11,160.36, 15,401.06 and 7,181.46

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Solution

The fourth proportional to 11,160.36, 15,401.06 and 7,181.46 is: 9,910.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,160.36 : 15,401.06 = 7,181.46 : x
  2. Step 2: Convert to fraction form
    11,160.36/15,401.06 = 7,181.46/x
  3. Step 3: Cross multiply
    11,160.36x = 15,401.06 × 7,181.46
  4. Step 4: Simplify right side
    11,160.36x = 110,602,060.44
  5. Step 5: Solve for x
    x = 110,602,060.44/11,160.36
  6. Step 6: Final answer
    x = 9,910.26

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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.