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Finding the Fourth Proportional to 8,333.86, 12,500.79 and 2,490.28

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Solution

The fourth proportional to 8,333.86, 12,500.79 and 2,490.28 is: 3,735.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,333.86 : 12,500.79 = 2,490.28 : x
  2. Step 2: Convert to fraction form
    8,333.86/12,500.79 = 2,490.28/x
  3. Step 3: Cross multiply
    8,333.86x = 12,500.79 × 2,490.28
  4. Step 4: Simplify right side
    8,333.86x = 31,130,467.32
  5. Step 5: Solve for x
    x = 31,130,467.32/8,333.86
  6. Step 6: Final answer
    x = 3,735.42

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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.