Home / 13,319.24-19,971.86-3,957.95

Finding the Fourth Proportional to 13,319.24, 19,971.86 and 3,957.95

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Solution

The fourth proportional to 13,319.24, 19,971.86 and 3,957.95 is: 5,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.24 : 19,971.86 = 3,957.95 : x
  2. Step 2: Convert to fraction form
    13,319.24/19,971.86 = 3,957.95/x
  3. Step 3: Cross multiply
    13,319.24x = 19,971.86 × 3,957.95
  4. Step 4: Simplify right side
    13,319.24x = 79,047,653.43
  5. Step 5: Solve for x
    x = 79,047,653.43/13,319.24
  6. Step 6: Final answer
    x = 5,934.85

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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.