Home / 8,405.52-12,603.96-3,786

Finding the Fourth Proportional to 8,405.52, 12,603.96 and 3,786

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Solution

The fourth proportional to 8,405.52, 12,603.96 and 3,786 is: 5,677.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.52 : 12,603.96 = 3,786 : x
  2. Step 2: Convert to fraction form
    8,405.52/12,603.96 = 3,786/x
  3. Step 3: Cross multiply
    8,405.52x = 12,603.96 × 3,786
  4. Step 4: Simplify right side
    8,405.52x = 47,718,592.56
  5. Step 5: Solve for x
    x = 47,718,592.56/8,405.52
  6. Step 6: Final answer
    x = 5,677.05

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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.