Home / 16,963.62-23,421.48-12,977.79

Finding the Fourth Proportional to 16,963.62, 23,421.48 and 12,977.79

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Solution

The fourth proportional to 16,963.62, 23,421.48 and 12,977.79 is: 17,918.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,963.62 : 23,421.48 = 12,977.79 : x
  2. Step 2: Convert to fraction form
    16,963.62/23,421.48 = 12,977.79/x
  3. Step 3: Cross multiply
    16,963.62x = 23,421.48 × 12,977.79
  4. Step 4: Simplify right side
    16,963.62x = 303,959,048.93
  5. Step 5: Solve for x
    x = 303,959,048.93/16,963.62
  6. Step 6: Final answer
    x = 17,918.29

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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.