Home / 18,818.84-28,224.14-7,714.60

Finding the Fourth Proportional to 18,818.84, 28,224.14 and 7,714.60

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Solution

The fourth proportional to 18,818.84, 28,224.14 and 7,714.60 is: 11,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.84 : 28,224.14 = 7,714.60 : x
  2. Step 2: Convert to fraction form
    18,818.84/28,224.14 = 7,714.60/x
  3. Step 3: Cross multiply
    18,818.84x = 28,224.14 × 7,714.60
  4. Step 4: Simplify right side
    18,818.84x = 217,737,950.44
  5. Step 5: Solve for x
    x = 217,737,950.44/18,818.84
  6. Step 6: Final answer
    x = 11,570.21

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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.