Home / 13,316.57-19,967.85-3,955.30

Finding the Fourth Proportional to 13,316.57, 19,967.85 and 3,955.30

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Solution

The fourth proportional to 13,316.57, 19,967.85 and 3,955.30 is: 5,930.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.57 : 19,967.85 = 3,955.30 : x
  2. Step 2: Convert to fraction form
    13,316.57/19,967.85 = 3,955.30/x
  3. Step 3: Cross multiply
    13,316.57x = 19,967.85 × 3,955.30
  4. Step 4: Simplify right side
    13,316.57x = 78,978,787.19
  5. Step 5: Solve for x
    x = 78,978,787.19/13,316.57
  6. Step 6: Final answer
    x = 5,930.87

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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.