Home / 13,982.18-19,279.41-10,439.42

Finding the Fourth Proportional to 13,982.18, 19,279.41 and 10,439.42

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Solution

The fourth proportional to 13,982.18, 19,279.41 and 10,439.42 is: 14,394.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.18 : 19,279.41 = 10,439.42 : x
  2. Step 2: Convert to fraction form
    13,982.18/19,279.41 = 10,439.42/x
  3. Step 3: Cross multiply
    13,982.18x = 19,279.41 × 10,439.42
  4. Step 4: Simplify right side
    13,982.18x = 201,265,858.34
  5. Step 5: Solve for x
    x = 201,265,858.34/13,982.18
  6. Step 6: Final answer
    x = 14,394.45

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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.