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Finding the Fourth Proportional to 8,500.29, 12,739.63 and 4,804.59

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Solution

The fourth proportional to 8,500.29, 12,739.63 and 4,804.59 is: 7,200.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,500.29 : 12,739.63 = 4,804.59 : x
  2. Step 2: Convert to fraction form
    8,500.29/12,739.63 = 4,804.59/x
  3. Step 3: Cross multiply
    8,500.29x = 12,739.63 × 4,804.59
  4. Step 4: Simplify right side
    8,500.29x = 61,208,698.90
  5. Step 5: Solve for x
    x = 61,208,698.90/8,500.29
  6. Step 6: Final answer
    x = 7,200.78

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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.