Home / 12,238.09-16,887.75-7,201.33

Finding the Fourth Proportional to 12,238.09, 16,887.75 and 7,201.33

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Solution

The fourth proportional to 12,238.09, 16,887.75 and 7,201.33 is: 9,937.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.09 : 16,887.75 = 7,201.33 : x
  2. Step 2: Convert to fraction form
    12,238.09/16,887.75 = 7,201.33/x
  3. Step 3: Cross multiply
    12,238.09x = 16,887.75 × 7,201.33
  4. Step 4: Simplify right side
    12,238.09x = 121,614,260.71
  5. Step 5: Solve for x
    x = 121,614,260.71/12,238.09
  6. Step 6: Final answer
    x = 9,937.36

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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.