Home / 18,806.42-28,204.99-7,716.26

Finding the Fourth Proportional to 18,806.42, 28,204.99 and 7,716.26

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Solution

The fourth proportional to 18,806.42, 28,204.99 and 7,716.26 is: 11,572.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806.42 : 28,204.99 = 7,716.26 : x
  2. Step 2: Convert to fraction form
    18,806.42/28,204.99 = 7,716.26/x
  3. Step 3: Cross multiply
    18,806.42x = 28,204.99 × 7,716.26
  4. Step 4: Simplify right side
    18,806.42x = 217,637,036.14
  5. Step 5: Solve for x
    x = 217,637,036.14/18,806.42
  6. Step 6: Final answer
    x = 11,572.49

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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.