Home / 12,715.09-19,072.62-4,923.90

Finding the Fourth Proportional to 12,715.09, 19,072.62 and 4,923.90

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Solution

The fourth proportional to 12,715.09, 19,072.62 and 4,923.90 is: 7,385.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.09 : 19,072.62 = 4,923.90 : x
  2. Step 2: Convert to fraction form
    12,715.09/19,072.62 = 4,923.90/x
  3. Step 3: Cross multiply
    12,715.09x = 19,072.62 × 4,923.90
  4. Step 4: Simplify right side
    12,715.09x = 93,911,673.62
  5. Step 5: Solve for x
    x = 93,911,673.62/12,715.09
  6. Step 6: Final answer
    x = 7,385.85

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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.