Home / 12,826.44-17,700.12-7,520.94

Finding the Fourth Proportional to 12,826.44, 17,700.12 and 7,520.94

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Solution

The fourth proportional to 12,826.44, 17,700.12 and 7,520.94 is: 10,378.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826.44 : 17,700.12 = 7,520.94 : x
  2. Step 2: Convert to fraction form
    12,826.44/17,700.12 = 7,520.94/x
  3. Step 3: Cross multiply
    12,826.44x = 17,700.12 × 7,520.94
  4. Step 4: Simplify right side
    12,826.44x = 133,121,540.51
  5. Step 5: Solve for x
    x = 133,121,540.51/12,826.44
  6. Step 6: Final answer
    x = 10,378.68

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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.