Home / 8,678.31-13,017.51-2,835.42

Finding the Fourth Proportional to 8,678.31, 13,017.51 and 2,835.42

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Solution

The fourth proportional to 8,678.31, 13,017.51 and 2,835.42 is: 4,253.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.31 : 13,017.51 = 2,835.42 : x
  2. Step 2: Convert to fraction form
    8,678.31/13,017.51 = 2,835.42/x
  3. Step 3: Cross multiply
    8,678.31x = 13,017.51 × 2,835.42
  4. Step 4: Simplify right side
    8,678.31x = 36,910,108.20
  5. Step 5: Solve for x
    x = 36,910,108.20/8,678.31
  6. Step 6: Final answer
    x = 4,253.14

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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.