Home / 8,418.72-12,624.18-4,031.36

Finding the Fourth Proportional to 8,418.72, 12,624.18 and 4,031.36

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Solution

The fourth proportional to 8,418.72, 12,624.18 and 4,031.36 is: 6,045.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.72 : 12,624.18 = 4,031.36 : x
  2. Step 2: Convert to fraction form
    8,418.72/12,624.18 = 4,031.36/x
  3. Step 3: Cross multiply
    8,418.72x = 12,624.18 × 4,031.36
  4. Step 4: Simplify right side
    8,418.72x = 50,892,614.28
  5. Step 5: Solve for x
    x = 50,892,614.28/8,418.72
  6. Step 6: Final answer
    x = 6,045.17

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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.