Home / 18,515.18-27,744.93-11,111.58

Finding the Fourth Proportional to 18,515.18, 27,744.93 and 11,111.58

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Solution

The fourth proportional to 18,515.18, 27,744.93 and 11,111.58 is: 16,650.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.18 : 27,744.93 = 11,111.58 : x
  2. Step 2: Convert to fraction form
    18,515.18/27,744.93 = 11,111.58/x
  3. Step 3: Cross multiply
    18,515.18x = 27,744.93 × 11,111.58
  4. Step 4: Simplify right side
    18,515.18x = 308,290,009.29
  5. Step 5: Solve for x
    x = 308,290,009.29/18,515.18
  6. Step 6: Final answer
    x = 16,650.66

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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.