Home / 13,145.58-19,711.80-4,377.42

Finding the Fourth Proportional to 13,145.58, 19,711.80 and 4,377.42

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Solution

The fourth proportional to 13,145.58, 19,711.80 and 4,377.42 is: 6,563.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.58 : 19,711.80 = 4,377.42 : x
  2. Step 2: Convert to fraction form
    13,145.58/19,711.80 = 4,377.42/x
  3. Step 3: Cross multiply
    13,145.58x = 19,711.80 × 4,377.42
  4. Step 4: Simplify right side
    13,145.58x = 86,286,827.56
  5. Step 5: Solve for x
    x = 86,286,827.56/13,145.58
  6. Step 6: Final answer
    x = 6,563.94

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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.