Home / 12,716.08-19,039.94-7,161.10

Finding the Fourth Proportional to 12,716.08, 19,039.94 and 7,161.10

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Solution

The fourth proportional to 12,716.08, 19,039.94 and 7,161.10 is: 10,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,716.08 : 19,039.94 = 7,161.10 : x
  2. Step 2: Convert to fraction form
    12,716.08/19,039.94 = 7,161.10/x
  3. Step 3: Cross multiply
    12,716.08x = 19,039.94 × 7,161.10
  4. Step 4: Simplify right side
    12,716.08x = 136,346,898.06
  5. Step 5: Solve for x
    x = 136,346,898.06/12,716.08
  6. Step 6: Final answer
    x = 10,722.40

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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.