Home / 7,885.29-11,830.10-4,137.31

Finding the Fourth Proportional to 7,885.29, 11,830.10 and 4,137.31

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Solution

The fourth proportional to 7,885.29, 11,830.10 and 4,137.31 is: 6,207.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,885.29 : 11,830.10 = 4,137.31 : x
  2. Step 2: Convert to fraction form
    7,885.29/11,830.10 = 4,137.31/x
  3. Step 3: Cross multiply
    7,885.29x = 11,830.10 × 4,137.31
  4. Step 4: Simplify right side
    7,885.29x = 48,944,770.34
  5. Step 5: Solve for x
    x = 48,944,770.34/7,885.29
  6. Step 6: Final answer
    x = 6,207.10

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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.