Home / 11,844.50-16,343.10-7,129.08

Finding the Fourth Proportional to 11,844.50, 16,343.10 and 7,129.08

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Solution

The fourth proportional to 11,844.50, 16,343.10 and 7,129.08 is: 9,836.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,844.50 : 16,343.10 = 7,129.08 : x
  2. Step 2: Convert to fraction form
    11,844.50/16,343.10 = 7,129.08/x
  3. Step 3: Cross multiply
    11,844.50x = 16,343.10 × 7,129.08
  4. Step 4: Simplify right side
    11,844.50x = 116,511,267.35
  5. Step 5: Solve for x
    x = 116,511,267.35/11,844.50
  6. Step 6: Final answer
    x = 9,836.74

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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.