Home / 12,854.05-19,282.44-4,086.91

Finding the Fourth Proportional to 12,854.05, 19,282.44 and 4,086.91

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Solution

The fourth proportional to 12,854.05, 19,282.44 and 4,086.91 is: 6,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,854.05 : 19,282.44 = 4,086.91 : x
  2. Step 2: Convert to fraction form
    12,854.05/19,282.44 = 4,086.91/x
  3. Step 3: Cross multiply
    12,854.05x = 19,282.44 × 4,086.91
  4. Step 4: Simplify right side
    12,854.05x = 78,805,596.86
  5. Step 5: Solve for x
    x = 78,805,596.86/12,854.05
  6. Step 6: Final answer
    x = 6,130.80

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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.