Home / 12,739.80-17,584.64-8,497.02

Finding the Fourth Proportional to 12,739.80, 17,584.64 and 8,497.02

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Solution

The fourth proportional to 12,739.80, 17,584.64 and 8,497.02 is: 11,728.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.80 : 17,584.64 = 8,497.02 : x
  2. Step 2: Convert to fraction form
    12,739.80/17,584.64 = 8,497.02/x
  3. Step 3: Cross multiply
    12,739.80x = 17,584.64 × 8,497.02
  4. Step 4: Simplify right side
    12,739.80x = 149,417,037.77
  5. Step 5: Solve for x
    x = 149,417,037.77/12,739.80
  6. Step 6: Final answer
    x = 11,728.37

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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.