Home / 12,739.22-17,579.33-7,073.62

Finding the Fourth Proportional to 12,739.22, 17,579.33 and 7,073.62

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Solution

The fourth proportional to 12,739.22, 17,579.33 and 7,073.62 is: 9,761.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.22 : 17,579.33 = 7,073.62 : x
  2. Step 2: Convert to fraction form
    12,739.22/17,579.33 = 7,073.62/x
  3. Step 3: Cross multiply
    12,739.22x = 17,579.33 × 7,073.62
  4. Step 4: Simplify right side
    12,739.22x = 124,349,474.01
  5. Step 5: Solve for x
    x = 124,349,474.01/12,739.22
  6. Step 6: Final answer
    x = 9,761.16

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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.