Home / 12,605.82-17,403.75-8,360.58

Finding the Fourth Proportional to 12,605.82, 17,403.75 and 8,360.58

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Solution

The fourth proportional to 12,605.82, 17,403.75 and 8,360.58 is: 11,542.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.82 : 17,403.75 = 8,360.58 : x
  2. Step 2: Convert to fraction form
    12,605.82/17,403.75 = 8,360.58/x
  3. Step 3: Cross multiply
    12,605.82x = 17,403.75 × 8,360.58
  4. Step 4: Simplify right side
    12,605.82x = 145,505,444.18
  5. Step 5: Solve for x
    x = 145,505,444.18/12,605.82
  6. Step 6: Final answer
    x = 11,542.72

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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.