Home / 8,577.27-12,858.51-3,315.97

Finding the Fourth Proportional to 8,577.27, 12,858.51 and 3,315.97

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Solution

The fourth proportional to 8,577.27, 12,858.51 and 3,315.97 is: 4,971.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,577.27 : 12,858.51 = 3,315.97 : x
  2. Step 2: Convert to fraction form
    8,577.27/12,858.51 = 3,315.97/x
  3. Step 3: Cross multiply
    8,577.27x = 12,858.51 × 3,315.97
  4. Step 4: Simplify right side
    8,577.27x = 42,638,433.40
  5. Step 5: Solve for x
    x = 42,638,433.40/8,577.27
  6. Step 6: Final answer
    x = 4,971.10

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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.