Home / 13,251.86-19,869.65-5,644.21

Finding the Fourth Proportional to 13,251.86, 19,869.65 and 5,644.21

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Solution

The fourth proportional to 13,251.86, 19,869.65 and 5,644.21 is: 8,462.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.86 : 19,869.65 = 5,644.21 : x
  2. Step 2: Convert to fraction form
    13,251.86/19,869.65 = 5,644.21/x
  3. Step 3: Cross multiply
    13,251.86x = 19,869.65 × 5,644.21
  4. Step 4: Simplify right side
    13,251.86x = 112,148,377.88
  5. Step 5: Solve for x
    x = 112,148,377.88/13,251.86
  6. Step 6: Final answer
    x = 8,462.84

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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.