Home / 8,964.88-12,371.28-4,985.92

Finding the Fourth Proportional to 8,964.88, 12,371.28 and 4,985.92

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Solution

The fourth proportional to 8,964.88, 12,371.28 and 4,985.92 is: 6,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.88 : 12,371.28 = 4,985.92 : x
  2. Step 2: Convert to fraction form
    8,964.88/12,371.28 = 4,985.92/x
  3. Step 3: Cross multiply
    8,964.88x = 12,371.28 × 4,985.92
  4. Step 4: Simplify right side
    8,964.88x = 61,682,212.38
  5. Step 5: Solve for x
    x = 61,682,212.38/8,964.88
  6. Step 6: Final answer
    x = 6,880.43

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1.5x scale

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.