Home / 14,815.53-20,336.59-13,099.34

Finding the Fourth Proportional to 14,815.53, 20,336.59 and 13,099.34

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Solution

The fourth proportional to 14,815.53, 20,336.59 and 13,099.34 is: 17,980.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,815.53 : 20,336.59 = 13,099.34 : x
  2. Step 2: Convert to fraction form
    14,815.53/20,336.59 = 13,099.34/x
  3. Step 3: Cross multiply
    14,815.53x = 20,336.59 × 13,099.34
  4. Step 4: Simplify right side
    14,815.53x = 266,395,906.85
  5. Step 5: Solve for x
    x = 266,395,906.85/14,815.53
  6. Step 6: Final answer
    x = 17,980.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.