Home / 15,423.43-21,284.30-8,349.85

Finding the Fourth Proportional to 15,423.43, 21,284.30 and 8,349.85

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Solution

The fourth proportional to 15,423.43, 21,284.30 and 8,349.85 is: 11,522.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.43 : 21,284.30 = 8,349.85 : x
  2. Step 2: Convert to fraction form
    15,423.43/21,284.30 = 8,349.85/x
  3. Step 3: Cross multiply
    15,423.43x = 21,284.30 × 8,349.85
  4. Step 4: Simplify right side
    15,423.43x = 177,720,605.93
  5. Step 5: Solve for x
    x = 177,720,605.93/15,423.43
  6. Step 6: Final answer
    x = 11,522.77

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.