Home / 8,748.72-13,120.68-5,235.96

Finding the Fourth Proportional to 8,748.72, 13,120.68 and 5,235.96

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Solution

The fourth proportional to 8,748.72, 13,120.68 and 5,235.96 is: 7,852.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748.72 : 13,120.68 = 5,235.96 : x
  2. Step 2: Convert to fraction form
    8,748.72/13,120.68 = 5,235.96/x
  3. Step 3: Cross multiply
    8,748.72x = 13,120.68 × 5,235.96
  4. Step 4: Simplify right side
    8,748.72x = 68,699,355.65
  5. Step 5: Solve for x
    x = 68,699,355.65/8,748.72
  6. Step 6: Final answer
    x = 7,852.50

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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.