Home / 8,179.47-12,267.99-2,985.35

Finding the Fourth Proportional to 8,179.47, 12,267.99 and 2,985.35

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Solution

The fourth proportional to 8,179.47, 12,267.99 and 2,985.35 is: 4,477.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.47 : 12,267.99 = 2,985.35 : x
  2. Step 2: Convert to fraction form
    8,179.47/12,267.99 = 2,985.35/x
  3. Step 3: Cross multiply
    8,179.47x = 12,267.99 × 2,985.35
  4. Step 4: Simplify right side
    8,179.47x = 36,624,182.61
  5. Step 5: Solve for x
    x = 36,624,182.61/8,179.47
  6. Step 6: Final answer
    x = 4,477.57

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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.