Home / 12,276.58-16,939.80-6,897.96

Finding the Fourth Proportional to 12,276.58, 16,939.80 and 6,897.96

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Solution

The fourth proportional to 12,276.58, 16,939.80 and 6,897.96 is: 9,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.58 : 16,939.80 = 6,897.96 : x
  2. Step 2: Convert to fraction form
    12,276.58/16,939.80 = 6,897.96/x
  3. Step 3: Cross multiply
    12,276.58x = 16,939.80 × 6,897.96
  4. Step 4: Simplify right side
    12,276.58x = 116,850,062.81
  5. Step 5: Solve for x
    x = 116,850,062.81/12,276.58
  6. Step 6: Final answer
    x = 9,518.13

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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.