Home / 11,745.32-16,207.98-6,440.36

Finding the Fourth Proportional to 11,745.32, 16,207.98 and 6,440.36

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Solution

The fourth proportional to 11,745.32, 16,207.98 and 6,440.36 is: 8,887.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.32 : 16,207.98 = 6,440.36 : x
  2. Step 2: Convert to fraction form
    11,745.32/16,207.98 = 6,440.36/x
  3. Step 3: Cross multiply
    11,745.32x = 16,207.98 × 6,440.36
  4. Step 4: Simplify right side
    11,745.32x = 104,385,226.07
  5. Step 5: Solve for x
    x = 104,385,226.07/11,745.32
  6. Step 6: Final answer
    x = 8,887.39

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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.