Home / 12,876.46-19,302.36-4,105.69

Finding the Fourth Proportional to 12,876.46, 19,302.36 and 4,105.69

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Solution

The fourth proportional to 12,876.46, 19,302.36 and 4,105.69 is: 6,154.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.46 : 19,302.36 = 4,105.69 : x
  2. Step 2: Convert to fraction form
    12,876.46/19,302.36 = 4,105.69/x
  3. Step 3: Cross multiply
    12,876.46x = 19,302.36 × 4,105.69
  4. Step 4: Simplify right side
    12,876.46x = 79,249,506.43
  5. Step 5: Solve for x
    x = 79,249,506.43/12,876.46
  6. Step 6: Final answer
    x = 6,154.60

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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.