Home / 13,982.43-19,279.76-10,439.67

Finding the Fourth Proportional to 13,982.43, 19,279.76 and 10,439.67

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Solution

The fourth proportional to 13,982.43, 19,279.76 and 10,439.67 is: 14,394.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,982.43 : 19,279.76 = 10,439.67 : x
  2. Step 2: Convert to fraction form
    13,982.43/19,279.76 = 10,439.67/x
  3. Step 3: Cross multiply
    13,982.43x = 19,279.76 × 10,439.67
  4. Step 4: Simplify right side
    13,982.43x = 201,274,279.88
  5. Step 5: Solve for x
    x = 201,274,279.88/13,982.43
  6. Step 6: Final answer
    x = 14,394.80

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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.