Home / 12,845.72-17,727.96-7,257.08

Finding the Fourth Proportional to 12,845.72, 17,727.96 and 7,257.08

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Solution

The fourth proportional to 12,845.72, 17,727.96 and 7,257.08 is: 10,015.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,845.72 : 17,727.96 = 7,257.08 : x
  2. Step 2: Convert to fraction form
    12,845.72/17,727.96 = 7,257.08/x
  3. Step 3: Cross multiply
    12,845.72x = 17,727.96 × 7,257.08
  4. Step 4: Simplify right side
    12,845.72x = 128,653,223.96
  5. Step 5: Solve for x
    x = 128,653,223.96/12,845.72
  6. Step 6: Final answer
    x = 10,015.26

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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.