Home / 10,961.80-16,438.92-4,386.28

Finding the Fourth Proportional to 10,961.80, 16,438.92 and 4,386.28

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Solution

The fourth proportional to 10,961.80, 16,438.92 and 4,386.28 is: 6,577.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,961.80 : 16,438.92 = 4,386.28 : x
  2. Step 2: Convert to fraction form
    10,961.80/16,438.92 = 4,386.28/x
  3. Step 3: Cross multiply
    10,961.80x = 16,438.92 × 4,386.28
  4. Step 4: Simplify right side
    10,961.80x = 72,105,706.02
  5. Step 5: Solve for x
    x = 72,105,706.02/10,961.80
  6. Step 6: Final answer
    x = 6,577.91

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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.