Home / 17,780.64-26,724.94-11,878.47

Finding the Fourth Proportional to 17,780.64, 26,724.94 and 11,878.47

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Solution

The fourth proportional to 17,780.64, 26,724.94 and 11,878.47 is: 17,853.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,780.64 : 26,724.94 = 11,878.47 : x
  2. Step 2: Convert to fraction form
    17,780.64/26,724.94 = 11,878.47/x
  3. Step 3: Cross multiply
    17,780.64x = 26,724.94 × 11,878.47
  4. Step 4: Simplify right side
    17,780.64x = 317,451,368.35
  5. Step 5: Solve for x
    x = 317,451,368.35/17,780.64
  6. Step 6: Final answer
    x = 17,853.77

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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.