Home / 16,976.79-23,428.85-12,777.75

Finding the Fourth Proportional to 16,976.79, 23,428.85 and 12,777.75

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Solution

The fourth proportional to 16,976.79, 23,428.85 and 12,777.75 is: 17,633.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,976.79 : 23,428.85 = 12,777.75 : x
  2. Step 2: Convert to fraction form
    16,976.79/23,428.85 = 12,777.75/x
  3. Step 3: Cross multiply
    16,976.79x = 23,428.85 × 12,777.75
  4. Step 4: Simplify right side
    16,976.79x = 299,367,924.20
  5. Step 5: Solve for x
    x = 299,367,924.20/16,976.79
  6. Step 6: Final answer
    x = 17,633.95

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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.