Home / 13,316.83-19,979.22-3,957.16

Finding the Fourth Proportional to 13,316.83, 19,979.22 and 3,957.16

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Solution

The fourth proportional to 13,316.83, 19,979.22 and 3,957.16 is: 5,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.83 : 19,979.22 = 3,957.16 : x
  2. Step 2: Convert to fraction form
    13,316.83/19,979.22 = 3,957.16/x
  3. Step 3: Cross multiply
    13,316.83x = 19,979.22 × 3,957.16
  4. Step 4: Simplify right side
    13,316.83x = 79,060,970.22
  5. Step 5: Solve for x
    x = 79,060,970.22/13,316.83
  6. Step 6: Final answer
    x = 5,936.92

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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.