Home / 13,317.75-19,980.54-3,957.84

Finding the Fourth Proportional to 13,317.75, 19,980.54 and 3,957.84

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Solution

The fourth proportional to 13,317.75, 19,980.54 and 3,957.84 is: 5,937.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.75 : 19,980.54 = 3,957.84 : x
  2. Step 2: Convert to fraction form
    13,317.75/19,980.54 = 3,957.84/x
  3. Step 3: Cross multiply
    13,317.75x = 19,980.54 × 3,957.84
  4. Step 4: Simplify right side
    13,317.75x = 79,079,780.43
  5. Step 5: Solve for x
    x = 79,079,780.43/13,317.75
  6. Step 6: Final answer
    x = 5,937.92

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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.