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Finding the Fourth Proportional to 9,131.59, 13,699.41 and 2,893.51

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Solution

The fourth proportional to 9,131.59, 13,699.41 and 2,893.51 is: 4,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,131.59 : 13,699.41 = 2,893.51 : x
  2. Step 2: Convert to fraction form
    9,131.59/13,699.41 = 2,893.51/x
  3. Step 3: Cross multiply
    9,131.59x = 13,699.41 × 2,893.51
  4. Step 4: Simplify right side
    9,131.59x = 39,639,379.83
  5. Step 5: Solve for x
    x = 39,639,379.83/9,131.59
  6. Step 6: Final answer
    x = 4,340.91

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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.