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Finding the Fourth Proportional to 8,339.88, 12,509.10 and 2,497.80

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Solution

The fourth proportional to 8,339.88, 12,509.10 and 2,497.80 is: 3,746.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.88 : 12,509.10 = 2,497.80 : x
  2. Step 2: Convert to fraction form
    8,339.88/12,509.10 = 2,497.80/x
  3. Step 3: Cross multiply
    8,339.88x = 12,509.10 × 2,497.80
  4. Step 4: Simplify right side
    8,339.88x = 31,245,229.98
  5. Step 5: Solve for x
    x = 31,245,229.98/8,339.88
  6. Step 6: Final answer
    x = 3,746.48

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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.