Home / 13,136.36-19,577.12-12,716.07

Finding the Fourth Proportional to 13,136.36, 19,577.12 and 12,716.07

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Solution

The fourth proportional to 13,136.36, 19,577.12 and 12,716.07 is: 18,950.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136.36 : 19,577.12 = 12,716.07 : x
  2. Step 2: Convert to fraction form
    13,136.36/19,577.12 = 12,716.07/x
  3. Step 3: Cross multiply
    13,136.36x = 19,577.12 × 12,716.07
  4. Step 4: Simplify right side
    13,136.36x = 248,944,028.32
  5. Step 5: Solve for x
    x = 248,944,028.32/13,136.36
  6. Step 6: Final answer
    x = 18,950.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.