Home / 12,682.76-19,013.88-5,292.80

Finding the Fourth Proportional to 12,682.76, 19,013.88 and 5,292.80

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Solution

The fourth proportional to 12,682.76, 19,013.88 and 5,292.80 is: 7,934.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,682.76 : 19,013.88 = 5,292.80 : x
  2. Step 2: Convert to fraction form
    12,682.76/19,013.88 = 5,292.80/x
  3. Step 3: Cross multiply
    12,682.76x = 19,013.88 × 5,292.80
  4. Step 4: Simplify right side
    12,682.76x = 100,636,664.06
  5. Step 5: Solve for x
    x = 100,636,664.06/12,682.76
  6. Step 6: Final answer
    x = 7,934.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.