Home / 8,789.16-12,129.08-4,755.98

Finding the Fourth Proportional to 8,789.16, 12,129.08 and 4,755.98

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Solution

The fourth proportional to 8,789.16, 12,129.08 and 4,755.98 is: 6,563.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789.16 : 12,129.08 = 4,755.98 : x
  2. Step 2: Convert to fraction form
    8,789.16/12,129.08 = 4,755.98/x
  3. Step 3: Cross multiply
    8,789.16x = 12,129.08 × 4,755.98
  4. Step 4: Simplify right side
    8,789.16x = 57,685,661.90
  5. Step 5: Solve for x
    x = 57,685,661.90/8,789.16
  6. Step 6: Final answer
    x = 6,563.27

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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.