Home / 13,014.96-19,516.80-4,128

Finding the Fourth Proportional to 13,014.96, 19,516.80 and 4,128

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Solution

The fourth proportional to 13,014.96, 19,516.80 and 4,128 is: 6,190.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,014.96 : 19,516.80 = 4,128 : x
  2. Step 2: Convert to fraction form
    13,014.96/19,516.80 = 4,128/x
  3. Step 3: Cross multiply
    13,014.96x = 19,516.80 × 4,128
  4. Step 4: Simplify right side
    13,014.96x = 80,565,350.40
  5. Step 5: Solve for x
    x = 80,565,350.40/13,014.96
  6. Step 6: Final answer
    x = 6,190.21

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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.