Home / 13,378.49-20,070.02-4,611.36

Finding the Fourth Proportional to 13,378.49, 20,070.02 and 4,611.36

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Solution

The fourth proportional to 13,378.49, 20,070.02 and 4,611.36 is: 6,917.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.49 : 20,070.02 = 4,611.36 : x
  2. Step 2: Convert to fraction form
    13,378.49/20,070.02 = 4,611.36/x
  3. Step 3: Cross multiply
    13,378.49x = 20,070.02 × 4,611.36
  4. Step 4: Simplify right side
    13,378.49x = 92,550,087.43
  5. Step 5: Solve for x
    x = 92,550,087.43/13,378.49
  6. Step 6: Final answer
    x = 6,917.83

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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.