Home / 12,379.87-17,084.15-6,714.63

Finding the Fourth Proportional to 12,379.87, 17,084.15 and 6,714.63

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Solution

The fourth proportional to 12,379.87, 17,084.15 and 6,714.63 is: 9,266.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.87 : 17,084.15 = 6,714.63 : x
  2. Step 2: Convert to fraction form
    12,379.87/17,084.15 = 6,714.63/x
  3. Step 3: Cross multiply
    12,379.87x = 17,084.15 × 6,714.63
  4. Step 4: Simplify right side
    12,379.87x = 114,713,737.72
  5. Step 5: Solve for x
    x = 114,713,737.72/12,379.87
  6. Step 6: Final answer
    x = 9,266.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.