Home / 12,986.29-17,924.75-7,682.95

Finding the Fourth Proportional to 12,986.29, 17,924.75 and 7,682.95

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Solution

The fourth proportional to 12,986.29, 17,924.75 and 7,682.95 is: 10,604.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,986.29 : 17,924.75 = 7,682.95 : x
  2. Step 2: Convert to fraction form
    12,986.29/17,924.75 = 7,682.95/x
  3. Step 3: Cross multiply
    12,986.29x = 17,924.75 × 7,682.95
  4. Step 4: Simplify right side
    12,986.29x = 137,714,958.01
  5. Step 5: Solve for x
    x = 137,714,958.01/12,986.29
  6. Step 6: Final answer
    x = 10,604.64

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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.