Home / 14,351.78-19,815.11-12,834.62

Finding the Fourth Proportional to 14,351.78, 19,815.11 and 12,834.62

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Solution

The fourth proportional to 14,351.78, 19,815.11 and 12,834.62 is: 17,720.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,351.78 : 19,815.11 = 12,834.62 : x
  2. Step 2: Convert to fraction form
    14,351.78/19,815.11 = 12,834.62/x
  3. Step 3: Cross multiply
    14,351.78x = 19,815.11 × 12,834.62
  4. Step 4: Simplify right side
    14,351.78x = 254,319,407.11
  5. Step 5: Solve for x
    x = 254,319,407.11/14,351.78
  6. Step 6: Final answer
    x = 17,720.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.