Home / 18,860.26-28,290.75-5,712.58

Finding the Fourth Proportional to 18,860.26, 28,290.75 and 5,712.58

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Solution

The fourth proportional to 18,860.26, 28,290.75 and 5,712.58 is: 8,568.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.26 : 28,290.75 = 5,712.58 : x
  2. Step 2: Convert to fraction form
    18,860.26/28,290.75 = 5,712.58/x
  3. Step 3: Cross multiply
    18,860.26x = 28,290.75 × 5,712.58
  4. Step 4: Simplify right side
    18,860.26x = 161,613,172.64
  5. Step 5: Solve for x
    x = 161,613,172.64/18,860.26
  6. Step 6: Final answer
    x = 8,568.98

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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.