Home / 8,188.74-12,285.18-3,506.40

Finding the Fourth Proportional to 8,188.74, 12,285.18 and 3,506.40

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Solution

The fourth proportional to 8,188.74, 12,285.18 and 3,506.40 is: 5,260.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188.74 : 12,285.18 = 3,506.40 : x
  2. Step 2: Convert to fraction form
    8,188.74/12,285.18 = 3,506.40/x
  3. Step 3: Cross multiply
    8,188.74x = 12,285.18 × 3,506.40
  4. Step 4: Simplify right side
    8,188.74x = 43,076,755.15
  5. Step 5: Solve for x
    x = 43,076,755.15/8,188.74
  6. Step 6: Final answer
    x = 5,260.49

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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.