Home / 18,716.34-28,065.06-7,021.32

Finding the Fourth Proportional to 18,716.34, 28,065.06 and 7,021.32

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Solution

The fourth proportional to 18,716.34, 28,065.06 and 7,021.32 is: 10,528.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,716.34 : 28,065.06 = 7,021.32 : x
  2. Step 2: Convert to fraction form
    18,716.34/28,065.06 = 7,021.32/x
  3. Step 3: Cross multiply
    18,716.34x = 28,065.06 × 7,021.32
  4. Step 4: Simplify right side
    18,716.34x = 197,053,767.08
  5. Step 5: Solve for x
    x = 197,053,767.08/18,716.34
  6. Step 6: Final answer
    x = 10,528.43

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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.