Home / 11,174.42-15,418.98-6,457.79

Finding the Fourth Proportional to 11,174.42, 15,418.98 and 6,457.79

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Solution

The fourth proportional to 11,174.42, 15,418.98 and 6,457.79 is: 8,910.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,174.42 : 15,418.98 = 6,457.79 : x
  2. Step 2: Convert to fraction form
    11,174.42/15,418.98 = 6,457.79/x
  3. Step 3: Cross multiply
    11,174.42x = 15,418.98 × 6,457.79
  4. Step 4: Simplify right side
    11,174.42x = 99,572,457.76
  5. Step 5: Solve for x
    x = 99,572,457.76/11,174.42
  6. Step 6: Final answer
    x = 8,910.75

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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.