Home / 13,946.76-19,128.53-12,372.12

Finding the Fourth Proportional to 13,946.76, 19,128.53 and 12,372.12

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Solution

The fourth proportional to 13,946.76, 19,128.53 and 12,372.12 is: 16,968.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.76 : 19,128.53 = 12,372.12 : x
  2. Step 2: Convert to fraction form
    13,946.76/19,128.53 = 12,372.12/x
  3. Step 3: Cross multiply
    13,946.76x = 19,128.53 × 12,372.12
  4. Step 4: Simplify right side
    13,946.76x = 236,660,406.72
  5. Step 5: Solve for x
    x = 236,660,406.72/13,946.76
  6. Step 6: Final answer
    x = 16,968.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.