Home / 11,977.81-16,528.02-6,940.99

Finding the Fourth Proportional to 11,977.81, 16,528.02 and 6,940.99

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Solution

The fourth proportional to 11,977.81, 16,528.02 and 6,940.99 is: 9,577.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.81 : 16,528.02 = 6,940.99 : x
  2. Step 2: Convert to fraction form
    11,977.81/16,528.02 = 6,940.99/x
  3. Step 3: Cross multiply
    11,977.81x = 16,528.02 × 6,940.99
  4. Step 4: Simplify right side
    11,977.81x = 114,720,874.74
  5. Step 5: Solve for x
    x = 114,720,874.74/11,977.81
  6. Step 6: Final answer
    x = 9,577.78

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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.