Home / 8,390.03-12,586.56-3,456.92

Finding the Fourth Proportional to 8,390.03, 12,586.56 and 3,456.92

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Solution

The fourth proportional to 8,390.03, 12,586.56 and 3,456.92 is: 5,186.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.03 : 12,586.56 = 3,456.92 : x
  2. Step 2: Convert to fraction form
    8,390.03/12,586.56 = 3,456.92/x
  3. Step 3: Cross multiply
    8,390.03x = 12,586.56 × 3,456.92
  4. Step 4: Simplify right side
    8,390.03x = 43,510,713.71
  5. Step 5: Solve for x
    x = 43,510,713.71/8,390.03
  6. Step 6: Final answer
    x = 5,186.01

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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.