Home / 13,222.70-19,834.53-4,457.69

Finding the Fourth Proportional to 13,222.70, 19,834.53 and 4,457.69

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Solution

The fourth proportional to 13,222.70, 19,834.53 and 4,457.69 is: 6,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.70 : 19,834.53 = 4,457.69 : x
  2. Step 2: Convert to fraction form
    13,222.70/19,834.53 = 4,457.69/x
  3. Step 3: Cross multiply
    13,222.70x = 19,834.53 × 4,457.69
  4. Step 4: Simplify right side
    13,222.70x = 88,416,218.91
  5. Step 5: Solve for x
    x = 88,416,218.91/13,222.70
  6. Step 6: Final answer
    x = 6,686.70

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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.