Home / 13,170.49-19,753.51-4,405.39

Finding the Fourth Proportional to 13,170.49, 19,753.51 and 4,405.39

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Solution

The fourth proportional to 13,170.49, 19,753.51 and 4,405.39 is: 6,607.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.49 : 19,753.51 = 4,405.39 : x
  2. Step 2: Convert to fraction form
    13,170.49/19,753.51 = 4,405.39/x
  3. Step 3: Cross multiply
    13,170.49x = 19,753.51 × 4,405.39
  4. Step 4: Simplify right side
    13,170.49x = 87,021,915.42
  5. Step 5: Solve for x
    x = 87,021,915.42/13,170.49
  6. Step 6: Final answer
    x = 6,607.34

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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.