Home / 8,512.65-11,748.48-5,155.37

Finding the Fourth Proportional to 8,512.65, 11,748.48 and 5,155.37

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Solution

The fourth proportional to 8,512.65, 11,748.48 and 5,155.37 is: 7,115.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.65 : 11,748.48 = 5,155.37 : x
  2. Step 2: Convert to fraction form
    8,512.65/11,748.48 = 5,155.37/x
  3. Step 3: Cross multiply
    8,512.65x = 11,748.48 × 5,155.37
  4. Step 4: Simplify right side
    8,512.65x = 60,567,702.60
  5. Step 5: Solve for x
    x = 60,567,702.60/8,512.65
  6. Step 6: Final answer
    x = 7,115.02

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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.