Home / 12,835.09-17,712.12-7,169.50

Finding the Fourth Proportional to 12,835.09, 17,712.12 and 7,169.50

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Solution

The fourth proportional to 12,835.09, 17,712.12 and 7,169.50 is: 9,893.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,835.09 : 17,712.12 = 7,169.50 : x
  2. Step 2: Convert to fraction form
    12,835.09/17,712.12 = 7,169.50/x
  3. Step 3: Cross multiply
    12,835.09x = 17,712.12 × 7,169.50
  4. Step 4: Simplify right side
    12,835.09x = 126,987,044.34
  5. Step 5: Solve for x
    x = 126,987,044.34/12,835.09
  6. Step 6: Final answer
    x = 9,893.74

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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.