Home / 16,977.64-23,411.28-11,940.16

Finding the Fourth Proportional to 16,977.64, 23,411.28 and 11,940.16

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Solution

The fourth proportional to 16,977.64, 23,411.28 and 11,940.16 is: 16,464.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,977.64 : 23,411.28 = 11,940.16 : x
  2. Step 2: Convert to fraction form
    16,977.64/23,411.28 = 11,940.16/x
  3. Step 3: Cross multiply
    16,977.64x = 23,411.28 × 11,940.16
  4. Step 4: Simplify right side
    16,977.64x = 279,534,429.00
  5. Step 5: Solve for x
    x = 279,534,429.00/16,977.64
  6. Step 6: Final answer
    x = 16,464.86

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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.