Home / 19,591.54-29,381.07-6,440.88

Finding the Fourth Proportional to 19,591.54, 29,381.07 and 6,440.88

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Solution

The fourth proportional to 19,591.54, 29,381.07 and 6,440.88 is: 9,659.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,591.54 : 29,381.07 = 6,440.88 : x
  2. Step 2: Convert to fraction form
    19,591.54/29,381.07 = 6,440.88/x
  3. Step 3: Cross multiply
    19,591.54x = 29,381.07 × 6,440.88
  4. Step 4: Simplify right side
    19,591.54x = 189,239,946.14
  5. Step 5: Solve for x
    x = 189,239,946.14/19,591.54
  6. Step 6: Final answer
    x = 9,659.27

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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.