Home / 12,835.41-17,712.35-7,170.07

Finding the Fourth Proportional to 12,835.41, 17,712.35 and 7,170.07

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Solution

The fourth proportional to 12,835.41, 17,712.35 and 7,170.07 is: 9,894.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,835.41 : 17,712.35 = 7,170.07 : x
  2. Step 2: Convert to fraction form
    12,835.41/17,712.35 = 7,170.07/x
  3. Step 3: Cross multiply
    12,835.41x = 17,712.35 × 7,170.07
  4. Step 4: Simplify right side
    12,835.41x = 126,998,789.36
  5. Step 5: Solve for x
    x = 126,998,789.36/12,835.41
  6. Step 6: Final answer
    x = 9,894.41

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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.