Home / 13,713.32-20,570.78-3,853.37

Finding the Fourth Proportional to 13,713.32, 20,570.78 and 3,853.37

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Solution

The fourth proportional to 13,713.32, 20,570.78 and 3,853.37 is: 5,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.32 : 20,570.78 = 3,853.37 : x
  2. Step 2: Convert to fraction form
    13,713.32/20,570.78 = 3,853.37/x
  3. Step 3: Cross multiply
    13,713.32x = 20,570.78 × 3,853.37
  4. Step 4: Simplify right side
    13,713.32x = 79,266,826.53
  5. Step 5: Solve for x
    x = 79,266,826.53/13,713.32
  6. Step 6: Final answer
    x = 5,780.28

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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.