Home / 8,789.72-13,188.20-4,628.70

Finding the Fourth Proportional to 8,789.72, 13,188.20 and 4,628.70

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Solution

The fourth proportional to 8,789.72, 13,188.20 and 4,628.70 is: 6,944.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789.72 : 13,188.20 = 4,628.70 : x
  2. Step 2: Convert to fraction form
    8,789.72/13,188.20 = 4,628.70/x
  3. Step 3: Cross multiply
    8,789.72x = 13,188.20 × 4,628.70
  4. Step 4: Simplify right side
    8,789.72x = 61,044,198.20
  5. Step 5: Solve for x
    x = 61,044,198.20/8,789.72
  6. Step 6: Final answer
    x = 6,944.96

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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.