Home / 14,222.10-21,333.69-5,457.90

Finding the Fourth Proportional to 14,222.10, 21,333.69 and 5,457.90

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Solution

The fourth proportional to 14,222.10, 21,333.69 and 5,457.90 is: 8,187.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,222.10 : 21,333.69 = 5,457.90 : x
  2. Step 2: Convert to fraction form
    14,222.10/21,333.69 = 5,457.90/x
  3. Step 3: Cross multiply
    14,222.10x = 21,333.69 × 5,457.90
  4. Step 4: Simplify right side
    14,222.10x = 116,437,146.65
  5. Step 5: Solve for x
    x = 116,437,146.65/14,222.10
  6. Step 6: Final answer
    x = 8,187.06

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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.