Home / 11,945.29-16,483.75-6,640.02

Finding the Fourth Proportional to 11,945.29, 16,483.75 and 6,640.02

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Solution

The fourth proportional to 11,945.29, 16,483.75 and 6,640.02 is: 9,162.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.29 : 16,483.75 = 6,640.02 : x
  2. Step 2: Convert to fraction form
    11,945.29/16,483.75 = 6,640.02/x
  3. Step 3: Cross multiply
    11,945.29x = 16,483.75 × 6,640.02
  4. Step 4: Simplify right side
    11,945.29x = 109,452,429.68
  5. Step 5: Solve for x
    x = 109,452,429.68/11,945.29
  6. Step 6: Final answer
    x = 9,162.81

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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.