Home / 11,777.85-17,666.78-4,381.36

Finding the Fourth Proportional to 11,777.85, 17,666.78 and 4,381.36

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Solution

The fourth proportional to 11,777.85, 17,666.78 and 4,381.36 is: 6,572.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,777.85 : 17,666.78 = 4,381.36 : x
  2. Step 2: Convert to fraction form
    11,777.85/17,666.78 = 4,381.36/x
  3. Step 3: Cross multiply
    11,777.85x = 17,666.78 × 4,381.36
  4. Step 4: Simplify right side
    11,777.85x = 77,404,457.15
  5. Step 5: Solve for x
    x = 77,404,457.15/11,777.85
  6. Step 6: Final answer
    x = 6,572.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.