Home / 12,882.12-19,326.84-4,117.72

Finding the Fourth Proportional to 12,882.12, 19,326.84 and 4,117.72

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Solution

The fourth proportional to 12,882.12, 19,326.84 and 4,117.72 is: 6,177.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882.12 : 19,326.84 = 4,117.72 : x
  2. Step 2: Convert to fraction form
    12,882.12/19,326.84 = 4,117.72/x
  3. Step 3: Cross multiply
    12,882.12x = 19,326.84 × 4,117.72
  4. Step 4: Simplify right side
    12,882.12x = 79,582,515.60
  5. Step 5: Solve for x
    x = 79,582,515.60/12,882.12
  6. Step 6: Final answer
    x = 6,177.75

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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.