Home / 12,303.86-16,979.09-6,714.90

Finding the Fourth Proportional to 12,303.86, 16,979.09 and 6,714.90

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Solution

The fourth proportional to 12,303.86, 16,979.09 and 6,714.90 is: 9,266.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.86 : 16,979.09 = 6,714.90 : x
  2. Step 2: Convert to fraction form
    12,303.86/16,979.09 = 6,714.90/x
  3. Step 3: Cross multiply
    12,303.86x = 16,979.09 × 6,714.90
  4. Step 4: Simplify right side
    12,303.86x = 114,012,891.44
  5. Step 5: Solve for x
    x = 114,012,891.44/12,303.86
  6. Step 6: Final answer
    x = 9,266.43

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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.