Home / 13,664.21-20,501.19-4,780.82

Finding the Fourth Proportional to 13,664.21, 20,501.19 and 4,780.82

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Solution

The fourth proportional to 13,664.21, 20,501.19 and 4,780.82 is: 7,172.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.21 : 20,501.19 = 4,780.82 : x
  2. Step 2: Convert to fraction form
    13,664.21/20,501.19 = 4,780.82/x
  3. Step 3: Cross multiply
    13,664.21x = 20,501.19 × 4,780.82
  4. Step 4: Simplify right side
    13,664.21x = 98,012,396.67
  5. Step 5: Solve for x
    x = 98,012,396.67/13,664.21
  6. Step 6: Final answer
    x = 7,172.93

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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.