Home / 9,091.11-12,542.72-7,409.63

Finding the Fourth Proportional to 9,091.11, 12,542.72 and 7,409.63

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Solution

The fourth proportional to 9,091.11, 12,542.72 and 7,409.63 is: 10,222.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,091.11 : 12,542.72 = 7,409.63 : x
  2. Step 2: Convert to fraction form
    9,091.11/12,542.72 = 7,409.63/x
  3. Step 3: Cross multiply
    9,091.11x = 12,542.72 × 7,409.63
  4. Step 4: Simplify right side
    9,091.11x = 92,936,814.63
  5. Step 5: Solve for x
    x = 92,936,814.63/9,091.11
  6. Step 6: Final answer
    x = 10,222.82

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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.