Home / 14,279.84-21,421.82-4,419.88

Finding the Fourth Proportional to 14,279.84, 21,421.82 and 4,419.88

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Solution

The fourth proportional to 14,279.84, 21,421.82 and 4,419.88 is: 6,630.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.84 : 21,421.82 = 4,419.88 : x
  2. Step 2: Convert to fraction form
    14,279.84/21,421.82 = 4,419.88/x
  3. Step 3: Cross multiply
    14,279.84x = 21,421.82 × 4,419.88
  4. Step 4: Simplify right side
    14,279.84x = 94,681,873.78
  5. Step 5: Solve for x
    x = 94,681,873.78/14,279.84
  6. Step 6: Final answer
    x = 6,630.46

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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.