Home / 13,984.30-20,976.59-4,123.77

Finding the Fourth Proportional to 13,984.30, 20,976.59 and 4,123.77

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Solution

The fourth proportional to 13,984.30, 20,976.59 and 4,123.77 is: 6,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984.30 : 20,976.59 = 4,123.77 : x
  2. Step 2: Convert to fraction form
    13,984.30/20,976.59 = 4,123.77/x
  3. Step 3: Cross multiply
    13,984.30x = 20,976.59 × 4,123.77
  4. Step 4: Simplify right side
    13,984.30x = 86,502,632.54
  5. Step 5: Solve for x
    x = 86,502,632.54/13,984.30
  6. Step 6: Final answer
    x = 6,185.70

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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.