Home / 13,321.19-19,975.58-3,957.77

Finding the Fourth Proportional to 13,321.19, 19,975.58 and 3,957.77

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Solution

The fourth proportional to 13,321.19, 19,975.58 and 3,957.77 is: 5,934.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.19 : 19,975.58 = 3,957.77 : x
  2. Step 2: Convert to fraction form
    13,321.19/19,975.58 = 3,957.77/x
  3. Step 3: Cross multiply
    13,321.19x = 19,975.58 × 3,957.77
  4. Step 4: Simplify right side
    13,321.19x = 79,058,731.47
  5. Step 5: Solve for x
    x = 79,058,731.47/13,321.19
  6. Step 6: Final answer
    x = 5,934.81

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1.5x scale

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.