Home / 12,507-17,187.46-11,928.80

Finding the Fourth Proportional to 12,507, 17,187.46 and 11,928.80

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Solution

The fourth proportional to 12,507, 17,187.46 and 11,928.80 is: 16,392.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507 : 17,187.46 = 11,928.80 : x
  2. Step 2: Convert to fraction form
    12,507/17,187.46 = 11,928.80/x
  3. Step 3: Cross multiply
    12,507x = 17,187.46 × 11,928.80
  4. Step 4: Simplify right side
    12,507x = 205,025,772.85
  5. Step 5: Solve for x
    x = 205,025,772.85/12,507
  6. Step 6: Final answer
    x = 16,392.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.