Home / 18,777.42-28,175.82-8,254.80

Finding the Fourth Proportional to 18,777.42, 28,175.82 and 8,254.80

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Solution

The fourth proportional to 18,777.42, 28,175.82 and 8,254.80 is: 12,386.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777.42 : 28,175.82 = 8,254.80 : x
  2. Step 2: Convert to fraction form
    18,777.42/28,175.82 = 8,254.80/x
  3. Step 3: Cross multiply
    18,777.42x = 28,175.82 × 8,254.80
  4. Step 4: Simplify right side
    18,777.42x = 232,585,758.94
  5. Step 5: Solve for x
    x = 232,585,758.94/18,777.42
  6. Step 6: Final answer
    x = 12,386.46

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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.