Home / 12,835.61-17,712.12-7,169.91

Finding the Fourth Proportional to 12,835.61, 17,712.12 and 7,169.91

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Solution

The fourth proportional to 12,835.61, 17,712.12 and 7,169.91 is: 9,893.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,835.61 : 17,712.12 = 7,169.91 : x
  2. Step 2: Convert to fraction form
    12,835.61/17,712.12 = 7,169.91/x
  3. Step 3: Cross multiply
    12,835.61x = 17,712.12 × 7,169.91
  4. Step 4: Simplify right side
    12,835.61x = 126,994,306.31
  5. Step 5: Solve for x
    x = 126,994,306.31/12,835.61
  6. Step 6: Final answer
    x = 9,893.91

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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.