Home / 12,001.72-16,562.40-6,696.88

Finding the Fourth Proportional to 12,001.72, 16,562.40 and 6,696.88

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Solution

The fourth proportional to 12,001.72, 16,562.40 and 6,696.88 is: 9,241.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,001.72 : 16,562.40 = 6,696.88 : x
  2. Step 2: Convert to fraction form
    12,001.72/16,562.40 = 6,696.88/x
  3. Step 3: Cross multiply
    12,001.72x = 16,562.40 × 6,696.88
  4. Step 4: Simplify right side
    12,001.72x = 110,916,405.31
  5. Step 5: Solve for x
    x = 110,916,405.31/12,001.72
  6. Step 6: Final answer
    x = 9,241.71

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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.