Home / 13,177.80-19,749.24-8,235.72

Finding the Fourth Proportional to 13,177.80, 19,749.24 and 8,235.72

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Solution

The fourth proportional to 13,177.80, 19,749.24 and 8,235.72 is: 12,342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.80 : 19,749.24 = 8,235.72 : x
  2. Step 2: Convert to fraction form
    13,177.80/19,749.24 = 8,235.72/x
  3. Step 3: Cross multiply
    13,177.80x = 19,749.24 × 8,235.72
  4. Step 4: Simplify right side
    13,177.80x = 162,649,210.85
  5. Step 5: Solve for x
    x = 162,649,210.85/13,177.80
  6. Step 6: Final answer
    x = 12,342.67

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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.