Home / 11,981.85-16,533.41-6,945.37

Finding the Fourth Proportional to 11,981.85, 16,533.41 and 6,945.37

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Solution

The fourth proportional to 11,981.85, 16,533.41 and 6,945.37 is: 9,583.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.85 : 16,533.41 = 6,945.37 : x
  2. Step 2: Convert to fraction form
    11,981.85/16,533.41 = 6,945.37/x
  3. Step 3: Cross multiply
    11,981.85x = 16,533.41 × 6,945.37
  4. Step 4: Simplify right side
    11,981.85x = 114,830,649.81
  5. Step 5: Solve for x
    x = 114,830,649.81/11,981.85
  6. Step 6: Final answer
    x = 9,583.72

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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.