Home / 12,742.74-19,103.22-9,960.84

Finding the Fourth Proportional to 12,742.74, 19,103.22 and 9,960.84

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Solution

The fourth proportional to 12,742.74, 19,103.22 and 9,960.84 is: 14,932.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.74 : 19,103.22 = 9,960.84 : x
  2. Step 2: Convert to fraction form
    12,742.74/19,103.22 = 9,960.84/x
  3. Step 3: Cross multiply
    12,742.74x = 19,103.22 × 9,960.84
  4. Step 4: Simplify right side
    12,742.74x = 190,284,117.90
  5. Step 5: Solve for x
    x = 190,284,117.90/12,742.74
  6. Step 6: Final answer
    x = 14,932.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.