Home / 19,660.64-29,472.48-7,177.76

Finding the Fourth Proportional to 19,660.64, 29,472.48 and 7,177.76

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Solution

The fourth proportional to 19,660.64, 29,472.48 and 7,177.76 is: 10,759.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.64 : 29,472.48 = 7,177.76 : x
  2. Step 2: Convert to fraction form
    19,660.64/29,472.48 = 7,177.76/x
  3. Step 3: Cross multiply
    19,660.64x = 29,472.48 × 7,177.76
  4. Step 4: Simplify right side
    19,660.64x = 211,546,388.04
  5. Step 5: Solve for x
    x = 211,546,388.04/19,660.64
  6. Step 6: Final answer
    x = 10,759.89

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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.