Home / 18,637.74-27,919.71-12,068.55

Finding the Fourth Proportional to 18,637.74, 27,919.71 and 12,068.55

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Solution

The fourth proportional to 18,637.74, 27,919.71 and 12,068.55 is: 18,078.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,637.74 : 27,919.71 = 12,068.55 : x
  2. Step 2: Convert to fraction form
    18,637.74/27,919.71 = 12,068.55/x
  3. Step 3: Cross multiply
    18,637.74x = 27,919.71 × 12,068.55
  4. Step 4: Simplify right side
    18,637.74x = 336,950,416.12
  5. Step 5: Solve for x
    x = 336,950,416.12/18,637.74
  6. Step 6: Final answer
    x = 18,078.93

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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.