Home / 12,338.31-18,509.09-6,495.24

Finding the Fourth Proportional to 12,338.31, 18,509.09 and 6,495.24

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Solution

The fourth proportional to 12,338.31, 18,509.09 and 6,495.24 is: 9,743.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,338.31 : 18,509.09 = 6,495.24 : x
  2. Step 2: Convert to fraction form
    12,338.31/18,509.09 = 6,495.24/x
  3. Step 3: Cross multiply
    12,338.31x = 18,509.09 × 6,495.24
  4. Step 4: Simplify right side
    12,338.31x = 120,221,067.38
  5. Step 5: Solve for x
    x = 120,221,067.38/12,338.31
  6. Step 6: Final answer
    x = 9,743.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.