Home / 18,814.36-28,226.24-13,278.51

Finding the Fourth Proportional to 18,814.36, 28,226.24 and 13,278.51

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Solution

The fourth proportional to 18,814.36, 28,226.24 and 13,278.51 is: 19,921.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.36 : 28,226.24 = 13,278.51 : x
  2. Step 2: Convert to fraction form
    18,814.36/28,226.24 = 13,278.51/x
  3. Step 3: Cross multiply
    18,814.36x = 28,226.24 × 13,278.51
  4. Step 4: Simplify right side
    18,814.36x = 374,802,410.10
  5. Step 5: Solve for x
    x = 374,802,410.10/18,814.36
  6. Step 6: Final answer
    x = 19,921.08

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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.