Home / 12,927.74-19,379.28-4,156.49

Finding the Fourth Proportional to 12,927.74, 19,379.28 and 4,156.49

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Solution

The fourth proportional to 12,927.74, 19,379.28 and 4,156.49 is: 6,230.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.74 : 19,379.28 = 4,156.49 : x
  2. Step 2: Convert to fraction form
    12,927.74/19,379.28 = 4,156.49/x
  3. Step 3: Cross multiply
    12,927.74x = 19,379.28 × 4,156.49
  4. Step 4: Simplify right side
    12,927.74x = 80,549,686.63
  5. Step 5: Solve for x
    x = 80,549,686.63/12,927.74
  6. Step 6: Final answer
    x = 6,230.77

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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.