Home / 11,161.54-15,403.04-6,126.09

Finding the Fourth Proportional to 11,161.54, 15,403.04 and 6,126.09

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Solution

The fourth proportional to 11,161.54, 15,403.04 and 6,126.09 is: 8,454.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.54 : 15,403.04 = 6,126.09 : x
  2. Step 2: Convert to fraction form
    11,161.54/15,403.04 = 6,126.09/x
  3. Step 3: Cross multiply
    11,161.54x = 15,403.04 × 6,126.09
  4. Step 4: Simplify right side
    11,161.54x = 94,360,409.31
  5. Step 5: Solve for x
    x = 94,360,409.31/11,161.54
  6. Step 6: Final answer
    x = 8,454.07

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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.