Home / 18,784.53-28,166.26-12,868.10

Finding the Fourth Proportional to 18,784.53, 28,166.26 and 12,868.10

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Solution

The fourth proportional to 18,784.53, 28,166.26 and 12,868.10 is: 19,294.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,784.53 : 28,166.26 = 12,868.10 : x
  2. Step 2: Convert to fraction form
    18,784.53/28,166.26 = 12,868.10/x
  3. Step 3: Cross multiply
    18,784.53x = 28,166.26 × 12,868.10
  4. Step 4: Simplify right side
    18,784.53x = 362,446,185.97
  5. Step 5: Solve for x
    x = 362,446,185.97/18,784.53
  6. Step 6: Final answer
    x = 19,294.93

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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.