Home / 12,130.23-18,196.11-3,810.57

Finding the Fourth Proportional to 12,130.23, 18,196.11 and 3,810.57

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Solution

The fourth proportional to 12,130.23, 18,196.11 and 3,810.57 is: 5,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.23 : 18,196.11 = 3,810.57 : x
  2. Step 2: Convert to fraction form
    12,130.23/18,196.11 = 3,810.57/x
  3. Step 3: Cross multiply
    12,130.23x = 18,196.11 × 3,810.57
  4. Step 4: Simplify right side
    12,130.23x = 69,337,550.88
  5. Step 5: Solve for x
    x = 69,337,550.88/12,130.23
  6. Step 6: Final answer
    x = 5,716.10

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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.