Home / 8,360.84-12,543.29-4,190.49

Finding the Fourth Proportional to 8,360.84, 12,543.29 and 4,190.49

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Solution

The fourth proportional to 8,360.84, 12,543.29 and 4,190.49 is: 6,286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.84 : 12,543.29 = 4,190.49 : x
  2. Step 2: Convert to fraction form
    8,360.84/12,543.29 = 4,190.49/x
  3. Step 3: Cross multiply
    8,360.84x = 12,543.29 × 4,190.49
  4. Step 4: Simplify right side
    8,360.84x = 52,562,510.36
  5. Step 5: Solve for x
    x = 52,562,510.36/8,360.84
  6. Step 6: Final answer
    x = 6,286.75

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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.