Home / 11,111.03-15,334.89-6,394.40

Finding the Fourth Proportional to 11,111.03, 15,334.89 and 6,394.40

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Solution

The fourth proportional to 11,111.03, 15,334.89 and 6,394.40 is: 8,825.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.03 : 15,334.89 = 6,394.40 : x
  2. Step 2: Convert to fraction form
    11,111.03/15,334.89 = 6,394.40/x
  3. Step 3: Cross multiply
    11,111.03x = 15,334.89 × 6,394.40
  4. Step 4: Simplify right side
    11,111.03x = 98,057,420.62
  5. Step 5: Solve for x
    x = 98,057,420.62/11,111.03
  6. Step 6: Final answer
    x = 8,825.23

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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.