Home / 18,733.14-25,830.54-12,768.30

Finding the Fourth Proportional to 18,733.14, 25,830.54 and 12,768.30

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Solution

The fourth proportional to 18,733.14, 25,830.54 and 12,768.30 is: 17,605.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,733.14 : 25,830.54 = 12,768.30 : x
  2. Step 2: Convert to fraction form
    18,733.14/25,830.54 = 12,768.30/x
  3. Step 3: Cross multiply
    18,733.14x = 25,830.54 × 12,768.30
  4. Step 4: Simplify right side
    18,733.14x = 329,812,083.88
  5. Step 5: Solve for x
    x = 329,812,083.88/18,733.14
  6. Step 6: Final answer
    x = 17,605.81

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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.