Home / 13,915.56-20,875.38-4,053.54

Finding the Fourth Proportional to 13,915.56, 20,875.38 and 4,053.54

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Solution

The fourth proportional to 13,915.56, 20,875.38 and 4,053.54 is: 6,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.56 : 20,875.38 = 4,053.54 : x
  2. Step 2: Convert to fraction form
    13,915.56/20,875.38 = 4,053.54/x
  3. Step 3: Cross multiply
    13,915.56x = 20,875.38 × 4,053.54
  4. Step 4: Simplify right side
    13,915.56x = 84,619,187.85
  5. Step 5: Solve for x
    x = 84,619,187.85/13,915.56
  6. Step 6: Final answer
    x = 6,080.90

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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.