Home / 7,789.85-11,660.48-5,602.85

Finding the Fourth Proportional to 7,789.85, 11,660.48 and 5,602.85

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Solution

The fourth proportional to 7,789.85, 11,660.48 and 5,602.85 is: 8,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.85 : 11,660.48 = 5,602.85 : x
  2. Step 2: Convert to fraction form
    7,789.85/11,660.48 = 5,602.85/x
  3. Step 3: Cross multiply
    7,789.85x = 11,660.48 × 5,602.85
  4. Step 4: Simplify right side
    7,789.85x = 65,331,892.35
  5. Step 5: Solve for x
    x = 65,331,892.35/7,789.85
  6. Step 6: Final answer
    x = 8,386.80

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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.