Home / 8,456.40-12,675.96-5,985.36

Finding the Fourth Proportional to 8,456.40, 12,675.96 and 5,985.36

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Solution

The fourth proportional to 8,456.40, 12,675.96 and 5,985.36 is: 8,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.40 : 12,675.96 = 5,985.36 : x
  2. Step 2: Convert to fraction form
    8,456.40/12,675.96 = 5,985.36/x
  3. Step 3: Cross multiply
    8,456.40x = 12,675.96 × 5,985.36
  4. Step 4: Simplify right side
    8,456.40x = 75,870,183.95
  5. Step 5: Solve for x
    x = 75,870,183.95/8,456.40
  6. Step 6: Final answer
    x = 8,971.92

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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.