Home / 19,314.42-28,964.33-8,918.88

Finding the Fourth Proportional to 19,314.42, 28,964.33 and 8,918.88

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Solution

The fourth proportional to 19,314.42, 28,964.33 and 8,918.88 is: 13,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,314.42 : 28,964.33 = 8,918.88 : x
  2. Step 2: Convert to fraction form
    19,314.42/28,964.33 = 8,918.88/x
  3. Step 3: Cross multiply
    19,314.42x = 28,964.33 × 8,918.88
  4. Step 4: Simplify right side
    19,314.42x = 258,329,383.55
  5. Step 5: Solve for x
    x = 258,329,383.55/19,314.42
  6. Step 6: Final answer
    x = 13,374.95

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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.