Home / 13,887.91-20,819.55-10,373.67

Finding the Fourth Proportional to 13,887.91, 20,819.55 and 10,373.67

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Solution

The fourth proportional to 13,887.91, 20,819.55 and 10,373.67 is: 15,551.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,887.91 : 20,819.55 = 10,373.67 : x
  2. Step 2: Convert to fraction form
    13,887.91/20,819.55 = 10,373.67/x
  3. Step 3: Cross multiply
    13,887.91x = 20,819.55 × 10,373.67
  4. Step 4: Simplify right side
    13,887.91x = 215,975,141.25
  5. Step 5: Solve for x
    x = 215,975,141.25/13,887.91
  6. Step 6: Final answer
    x = 15,551.31

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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.