Home / 12,570.74-18,855.50-4,251.08

Finding the Fourth Proportional to 12,570.74, 18,855.50 and 4,251.08

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Solution

The fourth proportional to 12,570.74, 18,855.50 and 4,251.08 is: 6,376.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.74 : 18,855.50 = 4,251.08 : x
  2. Step 2: Convert to fraction form
    12,570.74/18,855.50 = 4,251.08/x
  3. Step 3: Cross multiply
    12,570.74x = 18,855.50 × 4,251.08
  4. Step 4: Simplify right side
    12,570.74x = 80,156,238.94
  5. Step 5: Solve for x
    x = 80,156,238.94/12,570.74
  6. Step 6: Final answer
    x = 6,376.41

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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.