Home / 18,370.61-27,536.40-11,686.08

Finding the Fourth Proportional to 18,370.61, 27,536.40 and 11,686.08

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Solution

The fourth proportional to 18,370.61, 27,536.40 and 11,686.08 is: 17,516.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,370.61 : 27,536.40 = 11,686.08 : x
  2. Step 2: Convert to fraction form
    18,370.61/27,536.40 = 11,686.08/x
  3. Step 3: Cross multiply
    18,370.61x = 27,536.40 × 11,686.08
  4. Step 4: Simplify right side
    18,370.61x = 321,792,435.63
  5. Step 5: Solve for x
    x = 321,792,435.63/18,370.61
  6. Step 6: Final answer
    x = 17,516.70

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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.