Home / 13,914.03-19,191.20-10,138.35

Finding the Fourth Proportional to 13,914.03, 19,191.20 and 10,138.35

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Solution

The fourth proportional to 13,914.03, 19,191.20 and 10,138.35 is: 13,983.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.03 : 19,191.20 = 10,138.35 : x
  2. Step 2: Convert to fraction form
    13,914.03/19,191.20 = 10,138.35/x
  3. Step 3: Cross multiply
    13,914.03x = 19,191.20 × 10,138.35
  4. Step 4: Simplify right side
    13,914.03x = 194,567,051.83
  5. Step 5: Solve for x
    x = 194,567,051.83/13,914.03
  6. Step 6: Final answer
    x = 13,983.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.