Home / 12,556.19-18,834.26-5,155.43

Finding the Fourth Proportional to 12,556.19, 18,834.26 and 5,155.43

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Solution

The fourth proportional to 12,556.19, 18,834.26 and 5,155.43 is: 7,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.19 : 18,834.26 = 5,155.43 : x
  2. Step 2: Convert to fraction form
    12,556.19/18,834.26 = 5,155.43/x
  3. Step 3: Cross multiply
    12,556.19x = 18,834.26 × 5,155.43
  4. Step 4: Simplify right side
    12,556.19x = 97,098,709.03
  5. Step 5: Solve for x
    x = 97,098,709.03/12,556.19
  6. Step 6: Final answer
    x = 7,733.13

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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.