Home / 12,512.08-17,289.52-11,904.80

Finding the Fourth Proportional to 12,512.08, 17,289.52 and 11,904.80

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Solution

The fourth proportional to 12,512.08, 17,289.52 and 11,904.80 is: 16,450.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.08 : 17,289.52 = 11,904.80 : x
  2. Step 2: Convert to fraction form
    12,512.08/17,289.52 = 11,904.80/x
  3. Step 3: Cross multiply
    12,512.08x = 17,289.52 × 11,904.80
  4. Step 4: Simplify right side
    12,512.08x = 205,828,277.70
  5. Step 5: Solve for x
    x = 205,828,277.70/12,512.08
  6. Step 6: Final answer
    x = 16,450.36

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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.