Home / 13,106.12-19,659.78-3,747.49

Finding the Fourth Proportional to 13,106.12, 19,659.78 and 3,747.49

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Solution

The fourth proportional to 13,106.12, 19,659.78 and 3,747.49 is: 5,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106.12 : 19,659.78 = 3,747.49 : x
  2. Step 2: Convert to fraction form
    13,106.12/19,659.78 = 3,747.49/x
  3. Step 3: Cross multiply
    13,106.12x = 19,659.78 × 3,747.49
  4. Step 4: Simplify right side
    13,106.12x = 73,674,779.80
  5. Step 5: Solve for x
    x = 73,674,779.80/13,106.12
  6. Step 6: Final answer
    x = 5,621.40

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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.