Home / 13,713.66-20,570.58-3,853.13

Finding the Fourth Proportional to 13,713.66, 20,570.58 and 3,853.13

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Solution

The fourth proportional to 13,713.66, 20,570.58 and 3,853.13 is: 5,779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.66 : 20,570.58 = 3,853.13 : x
  2. Step 2: Convert to fraction form
    13,713.66/20,570.58 = 3,853.13/x
  3. Step 3: Cross multiply
    13,713.66x = 20,570.58 × 3,853.13
  4. Step 4: Simplify right side
    13,713.66x = 79,261,016.06
  5. Step 5: Solve for x
    x = 79,261,016.06/13,713.66
  6. Step 6: Final answer
    x = 5,779.71

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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.