Home / 14,479.09-21,711.30-7,072.45

Finding the Fourth Proportional to 14,479.09, 21,711.30 and 7,072.45

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Solution

The fourth proportional to 14,479.09, 21,711.30 and 7,072.45 is: 10,605.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,479.09 : 21,711.30 = 7,072.45 : x
  2. Step 2: Convert to fraction form
    14,479.09/21,711.30 = 7,072.45/x
  3. Step 3: Cross multiply
    14,479.09x = 21,711.30 × 7,072.45
  4. Step 4: Simplify right side
    14,479.09x = 153,552,083.69
  5. Step 5: Solve for x
    x = 153,552,083.69/14,479.09
  6. Step 6: Final answer
    x = 10,605.09

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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.