Home / 12,942.63-19,411.68-4,177.62

Finding the Fourth Proportional to 12,942.63, 19,411.68 and 4,177.62

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Solution

The fourth proportional to 12,942.63, 19,411.68 and 4,177.62 is: 6,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.63 : 19,411.68 = 4,177.62 : x
  2. Step 2: Convert to fraction form
    12,942.63/19,411.68 = 4,177.62/x
  3. Step 3: Cross multiply
    12,942.63x = 19,411.68 × 4,177.62
  4. Step 4: Simplify right side
    12,942.63x = 81,094,622.60
  5. Step 5: Solve for x
    x = 81,094,622.60/12,942.63
  6. Step 6: Final answer
    x = 6,265.70

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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.