Home / 8,567.07-11,809.19-7,879.70

Finding the Fourth Proportional to 8,567.07, 11,809.19 and 7,879.70

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Solution

The fourth proportional to 8,567.07, 11,809.19 and 7,879.70 is: 10,861.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,567.07 : 11,809.19 = 7,879.70 : x
  2. Step 2: Convert to fraction form
    8,567.07/11,809.19 = 7,879.70/x
  3. Step 3: Cross multiply
    8,567.07x = 11,809.19 × 7,879.70
  4. Step 4: Simplify right side
    8,567.07x = 93,052,776.00
  5. Step 5: Solve for x
    x = 93,052,776.00/8,567.07
  6. Step 6: Final answer
    x = 10,861.68

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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.