Home / 8,326.88-11,490.24-4,789.40

Finding the Fourth Proportional to 8,326.88, 11,490.24 and 4,789.40

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Solution

The fourth proportional to 8,326.88, 11,490.24 and 4,789.40 is: 6,608.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.88 : 11,490.24 = 4,789.40 : x
  2. Step 2: Convert to fraction form
    8,326.88/11,490.24 = 4,789.40/x
  3. Step 3: Cross multiply
    8,326.88x = 11,490.24 × 4,789.40
  4. Step 4: Simplify right side
    8,326.88x = 55,031,355.46
  5. Step 5: Solve for x
    x = 55,031,355.46/8,326.88
  6. Step 6: Final answer
    x = 6,608.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.