Home / 9,186.12-12,676.23-5,409.90

Finding the Fourth Proportional to 9,186.12, 12,676.23 and 5,409.90

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Solution

The fourth proportional to 9,186.12, 12,676.23 and 5,409.90 is: 7,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,186.12 : 12,676.23 = 5,409.90 : x
  2. Step 2: Convert to fraction form
    9,186.12/12,676.23 = 5,409.90/x
  3. Step 3: Cross multiply
    9,186.12x = 12,676.23 × 5,409.90
  4. Step 4: Simplify right side
    9,186.12x = 68,577,136.68
  5. Step 5: Solve for x
    x = 68,577,136.68/9,186.12
  6. Step 6: Final answer
    x = 7,465.30

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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.