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Finding the Fourth Proportional to 12,305.52, 16,980.03 and 6,927.28

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Solution

The fourth proportional to 12,305.52, 16,980.03 and 6,927.28 is: 9,558.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.52 : 16,980.03 = 6,927.28 : x
  2. Step 2: Convert to fraction form
    12,305.52/16,980.03 = 6,927.28/x
  3. Step 3: Cross multiply
    12,305.52x = 16,980.03 × 6,927.28
  4. Step 4: Simplify right side
    12,305.52x = 117,625,379.77
  5. Step 5: Solve for x
    x = 117,625,379.77/12,305.52
  6. Step 6: Final answer
    x = 9,558.75

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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.