Home / 8,416.24-12,621.70-2,868.64

Finding the Fourth Proportional to 8,416.24, 12,621.70 and 2,868.64

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Solution

The fourth proportional to 8,416.24, 12,621.70 and 2,868.64 is: 4,302.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.24 : 12,621.70 = 2,868.64 : x
  2. Step 2: Convert to fraction form
    8,416.24/12,621.70 = 2,868.64/x
  3. Step 3: Cross multiply
    8,416.24x = 12,621.70 × 2,868.64
  4. Step 4: Simplify right side
    8,416.24x = 36,207,113.49
  5. Step 5: Solve for x
    x = 36,207,113.49/8,416.24
  6. Step 6: Final answer
    x = 4,302.05

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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.