Home / 12,742.36-19,120.82-4,950.16

Finding the Fourth Proportional to 12,742.36, 19,120.82 and 4,950.16

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Solution

The fourth proportional to 12,742.36, 19,120.82 and 4,950.16 is: 7,428.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.36 : 19,120.82 = 4,950.16 : x
  2. Step 2: Convert to fraction form
    12,742.36/19,120.82 = 4,950.16/x
  3. Step 3: Cross multiply
    12,742.36x = 19,120.82 × 4,950.16
  4. Step 4: Simplify right side
    12,742.36x = 94,651,118.33
  5. Step 5: Solve for x
    x = 94,651,118.33/12,742.36
  6. Step 6: Final answer
    x = 7,428.07

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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.