Home / 13,310.62-19,957.02-4,989.58

Finding the Fourth Proportional to 13,310.62, 19,957.02 and 4,989.58

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Solution

The fourth proportional to 13,310.62, 19,957.02 and 4,989.58 is: 7,481.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.62 : 19,957.02 = 4,989.58 : x
  2. Step 2: Convert to fraction form
    13,310.62/19,957.02 = 4,989.58/x
  3. Step 3: Cross multiply
    13,310.62x = 19,957.02 × 4,989.58
  4. Step 4: Simplify right side
    13,310.62x = 99,577,147.85
  5. Step 5: Solve for x
    x = 99,577,147.85/13,310.62
  6. Step 6: Final answer
    x = 7,481.03

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1.5x scale

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.