Home / 9,115.31-13,684.77-4,735.82

Finding the Fourth Proportional to 9,115.31, 13,684.77 and 4,735.82

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Solution

The fourth proportional to 9,115.31, 13,684.77 and 4,735.82 is: 7,109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.31 : 13,684.77 = 4,735.82 : x
  2. Step 2: Convert to fraction form
    9,115.31/13,684.77 = 4,735.82/x
  3. Step 3: Cross multiply
    9,115.31x = 13,684.77 × 4,735.82
  4. Step 4: Simplify right side
    9,115.31x = 64,808,539.04
  5. Step 5: Solve for x
    x = 64,808,539.04/9,115.31
  6. Step 6: Final answer
    x = 7,109.86

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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.