Home / 13,778.20-19,023.30-9,247.67

Finding the Fourth Proportional to 13,778.20, 19,023.30 and 9,247.67

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Solution

The fourth proportional to 13,778.20, 19,023.30 and 9,247.67 is: 12,768.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778.20 : 19,023.30 = 9,247.67 : x
  2. Step 2: Convert to fraction form
    13,778.20/19,023.30 = 9,247.67/x
  3. Step 3: Cross multiply
    13,778.20x = 19,023.30 × 9,247.67
  4. Step 4: Simplify right side
    13,778.20x = 175,921,204.59
  5. Step 5: Solve for x
    x = 175,921,204.59/13,778.20
  6. Step 6: Final answer
    x = 12,768.09

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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.