Home / 12,308.25-18,450.08-11,381.51

Finding the Fourth Proportional to 12,308.25, 18,450.08 and 11,381.51

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Solution

The fourth proportional to 12,308.25, 18,450.08 and 11,381.51 is: 17,060.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308.25 : 18,450.08 = 11,381.51 : x
  2. Step 2: Convert to fraction form
    12,308.25/18,450.08 = 11,381.51/x
  3. Step 3: Cross multiply
    12,308.25x = 18,450.08 × 11,381.51
  4. Step 4: Simplify right side
    12,308.25x = 209,989,801.92
  5. Step 5: Solve for x
    x = 209,989,801.92/12,308.25
  6. Step 6: Final answer
    x = 17,060.89

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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.