Home / 14,078.25-21,118.35-4,717.89

Finding the Fourth Proportional to 14,078.25, 21,118.35 and 4,717.89

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Solution

The fourth proportional to 14,078.25, 21,118.35 and 4,717.89 is: 7,077.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.25 : 21,118.35 = 4,717.89 : x
  2. Step 2: Convert to fraction form
    14,078.25/21,118.35 = 4,717.89/x
  3. Step 3: Cross multiply
    14,078.25x = 21,118.35 × 4,717.89
  4. Step 4: Simplify right side
    14,078.25x = 99,634,052.28
  5. Step 5: Solve for x
    x = 99,634,052.28/14,078.25
  6. Step 6: Final answer
    x = 7,077.16

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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.