Home / 13,140.87-19,713.90-4,820.96

Finding the Fourth Proportional to 13,140.87, 19,713.90 and 4,820.96

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Solution

The fourth proportional to 13,140.87, 19,713.90 and 4,820.96 is: 7,232.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140.87 : 19,713.90 = 4,820.96 : x
  2. Step 2: Convert to fraction form
    13,140.87/19,713.90 = 4,820.96/x
  3. Step 3: Cross multiply
    13,140.87x = 19,713.90 × 4,820.96
  4. Step 4: Simplify right side
    13,140.87x = 95,039,800.67
  5. Step 5: Solve for x
    x = 95,039,800.67/13,140.87
  6. Step 6: Final answer
    x = 7,232.39

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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.