Home / 8,328.05-12,490.93-2,781.27

Finding the Fourth Proportional to 8,328.05, 12,490.93 and 2,781.27

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Solution

The fourth proportional to 8,328.05, 12,490.93 and 2,781.27 is: 4,171.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.05 : 12,490.93 = 2,781.27 : x
  2. Step 2: Convert to fraction form
    8,328.05/12,490.93 = 2,781.27/x
  3. Step 3: Cross multiply
    8,328.05x = 12,490.93 × 2,781.27
  4. Step 4: Simplify right side
    8,328.05x = 34,740,648.88
  5. Step 5: Solve for x
    x = 34,740,648.88/8,328.05
  6. Step 6: Final answer
    x = 4,171.52

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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.