Home / 8,985.30-13,477.97-3,141.90

Finding the Fourth Proportional to 8,985.30, 13,477.97 and 3,141.90

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Solution

The fourth proportional to 8,985.30, 13,477.97 and 3,141.90 is: 4,712.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.30 : 13,477.97 = 3,141.90 : x
  2. Step 2: Convert to fraction form
    8,985.30/13,477.97 = 3,141.90/x
  3. Step 3: Cross multiply
    8,985.30x = 13,477.97 × 3,141.90
  4. Step 4: Simplify right side
    8,985.30x = 42,346,418.23
  5. Step 5: Solve for x
    x = 42,346,418.23/8,985.30
  6. Step 6: Final answer
    x = 4,712.86

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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.