Home / 8,749.91-13,124.87-3,200.85

Finding the Fourth Proportional to 8,749.91, 13,124.87 and 3,200.85

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Solution

The fourth proportional to 8,749.91, 13,124.87 and 3,200.85 is: 4,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.91 : 13,124.87 = 3,200.85 : x
  2. Step 2: Convert to fraction form
    8,749.91/13,124.87 = 3,200.85/x
  3. Step 3: Cross multiply
    8,749.91x = 13,124.87 × 3,200.85
  4. Step 4: Simplify right side
    8,749.91x = 42,010,740.14
  5. Step 5: Solve for x
    x = 42,010,740.14/8,749.91
  6. Step 6: Final answer
    x = 4,801.28

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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.