Home / 12,926.88-19,390.40-4,607.22

Finding the Fourth Proportional to 12,926.88, 19,390.40 and 4,607.22

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Solution

The fourth proportional to 12,926.88, 19,390.40 and 4,607.22 is: 6,910.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,926.88 : 19,390.40 = 4,607.22 : x
  2. Step 2: Convert to fraction form
    12,926.88/19,390.40 = 4,607.22/x
  3. Step 3: Cross multiply
    12,926.88x = 19,390.40 × 4,607.22
  4. Step 4: Simplify right side
    12,926.88x = 89,335,815.65
  5. Step 5: Solve for x
    x = 89,335,815.65/12,926.88
  6. Step 6: Final answer
    x = 6,910.86

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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.