Home / 11,699.63-17,549.45-3,909.05

Finding the Fourth Proportional to 11,699.63, 17,549.45 and 3,909.05

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Solution

The fourth proportional to 11,699.63, 17,549.45 and 3,909.05 is: 5,863.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,699.63 : 17,549.45 = 3,909.05 : x
  2. Step 2: Convert to fraction form
    11,699.63/17,549.45 = 3,909.05/x
  3. Step 3: Cross multiply
    11,699.63x = 17,549.45 × 3,909.05
  4. Step 4: Simplify right side
    11,699.63x = 68,601,570.23
  5. Step 5: Solve for x
    x = 68,601,570.23/11,699.63
  6. Step 6: Final answer
    x = 5,863.57

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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.