Home / 11,745.46-16,208.62-6,440.26

Finding the Fourth Proportional to 11,745.46, 16,208.62 and 6,440.26

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Solution

The fourth proportional to 11,745.46, 16,208.62 and 6,440.26 is: 8,887.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.46 : 16,208.62 = 6,440.26 : x
  2. Step 2: Convert to fraction form
    11,745.46/16,208.62 = 6,440.26/x
  3. Step 3: Cross multiply
    11,745.46x = 16,208.62 × 6,440.26
  4. Step 4: Simplify right side
    11,745.46x = 104,387,727.04
  5. Step 5: Solve for x
    x = 104,387,727.04/11,745.46
  6. Step 6: Final answer
    x = 8,887.50

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Double scale
Find fourth proportional to 11,746.46, 16,210 and 6,441.26
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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.