Home / 12,161.09-16,782.32-6,572.09

Finding the Fourth Proportional to 12,161.09, 16,782.32 and 6,572.09

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Solution

The fourth proportional to 12,161.09, 16,782.32 and 6,572.09 is: 9,069.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.09 : 16,782.32 = 6,572.09 : x
  2. Step 2: Convert to fraction form
    12,161.09/16,782.32 = 6,572.09/x
  3. Step 3: Cross multiply
    12,161.09x = 16,782.32 × 6,572.09
  4. Step 4: Simplify right side
    12,161.09x = 110,294,917.45
  5. Step 5: Solve for x
    x = 110,294,917.45/12,161.09
  6. Step 6: Final answer
    x = 9,069.49

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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.