Home / 12,230.25-18,324.93-11,775.21

Finding the Fourth Proportional to 12,230.25, 18,324.93 and 11,775.21

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Solution

The fourth proportional to 12,230.25, 18,324.93 and 11,775.21 is: 17,643.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.25 : 18,324.93 = 11,775.21 : x
  2. Step 2: Convert to fraction form
    12,230.25/18,324.93 = 11,775.21/x
  3. Step 3: Cross multiply
    12,230.25x = 18,324.93 × 11,775.21
  4. Step 4: Simplify right side
    12,230.25x = 215,779,898.99
  5. Step 5: Solve for x
    x = 215,779,898.99/12,230.25
  6. Step 6: Final answer
    x = 17,643.13

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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.