Home / 13,318.61-19,970.96-3,957.33

Finding the Fourth Proportional to 13,318.61, 19,970.96 and 3,957.33

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Solution

The fourth proportional to 13,318.61, 19,970.96 and 3,957.33 is: 5,933.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.61 : 19,970.96 = 3,957.33 : x
  2. Step 2: Convert to fraction form
    13,318.61/19,970.96 = 3,957.33/x
  3. Step 3: Cross multiply
    13,318.61x = 19,970.96 × 3,957.33
  4. Step 4: Simplify right side
    13,318.61x = 79,031,734.24
  5. Step 5: Solve for x
    x = 79,031,734.24/13,318.61
  6. Step 6: Final answer
    x = 5,933.93

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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.