Home / 8,329.83-12,490.50-2,781.18

Finding the Fourth Proportional to 8,329.83, 12,490.50 and 2,781.18

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Solution

The fourth proportional to 8,329.83, 12,490.50 and 2,781.18 is: 4,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,329.83 : 12,490.50 = 2,781.18 : x
  2. Step 2: Convert to fraction form
    8,329.83/12,490.50 = 2,781.18/x
  3. Step 3: Cross multiply
    8,329.83x = 12,490.50 × 2,781.18
  4. Step 4: Simplify right side
    8,329.83x = 34,738,328.79
  5. Step 5: Solve for x
    x = 34,738,328.79/8,329.83
  6. Step 6: Final answer
    x = 4,170.35

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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.