Home / 8,635.86-12,946.32-3,438.36

Finding the Fourth Proportional to 8,635.86, 12,946.32 and 3,438.36

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Solution

The fourth proportional to 8,635.86, 12,946.32 and 3,438.36 is: 5,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.86 : 12,946.32 = 3,438.36 : x
  2. Step 2: Convert to fraction form
    8,635.86/12,946.32 = 3,438.36/x
  3. Step 3: Cross multiply
    8,635.86x = 12,946.32 × 3,438.36
  4. Step 4: Simplify right side
    8,635.86x = 44,514,108.84
  5. Step 5: Solve for x
    x = 44,514,108.84/8,635.86
  6. Step 6: Final answer
    x = 5,154.57

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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.