Home / 11,977.30-16,528.89-6,672.52

Finding the Fourth Proportional to 11,977.30, 16,528.89 and 6,672.52

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Solution

The fourth proportional to 11,977.30, 16,528.89 and 6,672.52 is: 9,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.30 : 16,528.89 = 6,672.52 : x
  2. Step 2: Convert to fraction form
    11,977.30/16,528.89 = 6,672.52/x
  3. Step 3: Cross multiply
    11,977.30x = 16,528.89 × 6,672.52
  4. Step 4: Simplify right side
    11,977.30x = 110,289,349.10
  5. Step 5: Solve for x
    x = 110,289,349.10/11,977.30
  6. Step 6: Final answer
    x = 9,208.20

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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.