Home / 12,317.25-17,005.62-8,539.05

Finding the Fourth Proportional to 12,317.25, 17,005.62 and 8,539.05

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Solution

The fourth proportional to 12,317.25, 17,005.62 and 8,539.05 is: 11,789.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,317.25 : 17,005.62 = 8,539.05 : x
  2. Step 2: Convert to fraction form
    12,317.25/17,005.62 = 8,539.05/x
  3. Step 3: Cross multiply
    12,317.25x = 17,005.62 × 8,539.05
  4. Step 4: Simplify right side
    12,317.25x = 145,211,839.46
  5. Step 5: Solve for x
    x = 145,211,839.46/12,317.25
  6. Step 6: Final answer
    x = 11,789.31

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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.