Home / 12,739.44-17,580.10-7,074.04

Finding the Fourth Proportional to 12,739.44, 17,580.10 and 7,074.04

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Solution

The fourth proportional to 12,739.44, 17,580.10 and 7,074.04 is: 9,761.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.44 : 17,580.10 = 7,074.04 : x
  2. Step 2: Convert to fraction form
    12,739.44/17,580.10 = 7,074.04/x
  3. Step 3: Cross multiply
    12,739.44x = 17,580.10 × 7,074.04
  4. Step 4: Simplify right side
    12,739.44x = 124,362,330.60
  5. Step 5: Solve for x
    x = 124,362,330.60/12,739.44
  6. Step 6: Final answer
    x = 9,761.99

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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.