Home / 19,586.88-29,383.97-6,439.77

Finding the Fourth Proportional to 19,586.88, 29,383.97 and 6,439.77

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Solution

The fourth proportional to 19,586.88, 29,383.97 and 6,439.77 is: 9,660.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,586.88 : 29,383.97 = 6,439.77 : x
  2. Step 2: Convert to fraction form
    19,586.88/29,383.97 = 6,439.77/x
  3. Step 3: Cross multiply
    19,586.88x = 29,383.97 × 6,439.77
  4. Step 4: Simplify right side
    19,586.88x = 189,225,976.29
  5. Step 5: Solve for x
    x = 189,225,976.29/19,586.88
  6. Step 6: Final answer
    x = 9,660.85

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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.