Home / 8,964.85-12,371.28-4,985.95

Finding the Fourth Proportional to 8,964.85, 12,371.28 and 4,985.95

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Solution

The fourth proportional to 8,964.85, 12,371.28 and 4,985.95 is: 6,880.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.85 : 12,371.28 = 4,985.95 : x
  2. Step 2: Convert to fraction form
    8,964.85/12,371.28 = 4,985.95/x
  3. Step 3: Cross multiply
    8,964.85x = 12,371.28 × 4,985.95
  4. Step 4: Simplify right side
    8,964.85x = 61,682,583.52
  5. Step 5: Solve for x
    x = 61,682,583.52/8,964.85
  6. Step 6: Final answer
    x = 6,880.49

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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.