Home / 12,013.88-16,579.01-6,636.38

Finding the Fourth Proportional to 12,013.88, 16,579.01 and 6,636.38

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Solution

The fourth proportional to 12,013.88, 16,579.01 and 6,636.38 is: 9,158.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.88 : 16,579.01 = 6,636.38 : x
  2. Step 2: Convert to fraction form
    12,013.88/16,579.01 = 6,636.38/x
  3. Step 3: Cross multiply
    12,013.88x = 16,579.01 × 6,636.38
  4. Step 4: Simplify right side
    12,013.88x = 110,024,544.08
  5. Step 5: Solve for x
    x = 110,024,544.08/12,013.88
  6. Step 6: Final answer
    x = 9,158.12

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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.