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Finding the Fourth Proportional to 8,498.57, 12,733.47 and 5,204.79

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Solution

The fourth proportional to 8,498.57, 12,733.47 and 5,204.79 is: 7,798.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,498.57 : 12,733.47 = 5,204.79 : x
  2. Step 2: Convert to fraction form
    8,498.57/12,733.47 = 5,204.79/x
  3. Step 3: Cross multiply
    8,498.57x = 12,733.47 × 5,204.79
  4. Step 4: Simplify right side
    8,498.57x = 66,274,986.67
  5. Step 5: Solve for x
    x = 66,274,986.67/8,498.57
  6. Step 6: Final answer
    x = 7,798.37

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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.