Home / 9,185.90-12,676.68-5,206.92

Finding the Fourth Proportional to 9,185.90, 12,676.68 and 5,206.92

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Solution

The fourth proportional to 9,185.90, 12,676.68 and 5,206.92 is: 7,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,185.90 : 12,676.68 = 5,206.92 : x
  2. Step 2: Convert to fraction form
    9,185.90/12,676.68 = 5,206.92/x
  3. Step 3: Cross multiply
    9,185.90x = 12,676.68 × 5,206.92
  4. Step 4: Simplify right side
    9,185.90x = 66,006,458.63
  5. Step 5: Solve for x
    x = 66,006,458.63/9,185.90
  6. Step 6: Final answer
    x = 7,185.63

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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.