Home / 11,126.37-15,352.90-6,409.74

Finding the Fourth Proportional to 11,126.37, 15,352.90 and 6,409.74

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Solution

The fourth proportional to 11,126.37, 15,352.90 and 6,409.74 is: 8,844.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126.37 : 15,352.90 = 6,409.74 : x
  2. Step 2: Convert to fraction form
    11,126.37/15,352.90 = 6,409.74/x
  3. Step 3: Cross multiply
    11,126.37x = 15,352.90 × 6,409.74
  4. Step 4: Simplify right side
    11,126.37x = 98,408,081.22
  5. Step 5: Solve for x
    x = 98,408,081.22/11,126.37
  6. Step 6: Final answer
    x = 8,844.58

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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.