Home / 13,488.34-20,231.84-4,722.58

Finding the Fourth Proportional to 13,488.34, 20,231.84 and 4,722.58

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Solution

The fourth proportional to 13,488.34, 20,231.84 and 4,722.58 is: 7,083.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.34 : 20,231.84 = 4,722.58 : x
  2. Step 2: Convert to fraction form
    13,488.34/20,231.84 = 4,722.58/x
  3. Step 3: Cross multiply
    13,488.34x = 20,231.84 × 4,722.58
  4. Step 4: Simplify right side
    13,488.34x = 95,546,482.95
  5. Step 5: Solve for x
    x = 95,546,482.95/13,488.34
  6. Step 6: Final answer
    x = 7,083.64

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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.