Home / 14,140-21,205.96-5,706.56

Finding the Fourth Proportional to 14,140, 21,205.96 and 5,706.56

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Solution

The fourth proportional to 14,140, 21,205.96 and 5,706.56 is: 8,558.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140 : 21,205.96 = 5,706.56 : x
  2. Step 2: Convert to fraction form
    14,140/21,205.96 = 5,706.56/x
  3. Step 3: Cross multiply
    14,140x = 21,205.96 × 5,706.56
  4. Step 4: Simplify right side
    14,140x = 121,013,083.10
  5. Step 5: Solve for x
    x = 121,013,083.10/14,140
  6. Step 6: Final answer
    x = 8,558.21

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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.