Home / 8,142.49-12,213.70-3,461.77

Finding the Fourth Proportional to 8,142.49, 12,213.70 and 3,461.77

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Solution

The fourth proportional to 8,142.49, 12,213.70 and 3,461.77 is: 5,192.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.49 : 12,213.70 = 3,461.77 : x
  2. Step 2: Convert to fraction form
    8,142.49/12,213.70 = 3,461.77/x
  3. Step 3: Cross multiply
    8,142.49x = 12,213.70 × 3,461.77
  4. Step 4: Simplify right side
    8,142.49x = 42,280,981.06
  5. Step 5: Solve for x
    x = 42,280,981.06/8,142.49
  6. Step 6: Final answer
    x = 5,192.64

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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.