Home / 8,966.21-12,372.99-4,987.31

Finding the Fourth Proportional to 8,966.21, 12,372.99 and 4,987.31

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Solution

The fourth proportional to 8,966.21, 12,372.99 and 4,987.31 is: 6,882.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.21 : 12,372.99 = 4,987.31 : x
  2. Step 2: Convert to fraction form
    8,966.21/12,372.99 = 4,987.31/x
  3. Step 3: Cross multiply
    8,966.21x = 12,372.99 × 4,987.31
  4. Step 4: Simplify right side
    8,966.21x = 61,707,936.76
  5. Step 5: Solve for x
    x = 61,707,936.76/8,966.21
  6. Step 6: Final answer
    x = 6,882.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.